Home / 991,901.40-1,487,852.10-243,947.40

Finding the Fourth Proportional to 991,901.40, 1,487,852.10 and 243,947.40

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Solution

The fourth proportional to 991,901.40, 1,487,852.10 and 243,947.40 is: 365,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,901.40 : 1,487,852.10 = 243,947.40 : x
  2. Step 2: Convert to fraction form
    991,901.40/1,487,852.10 = 243,947.40/x
  3. Step 3: Cross multiply
    991,901.40x = 1,487,852.10 × 243,947.40
  4. Step 4: Simplify right side
    991,901.40x = 362,957,651,379.54
  5. Step 5: Solve for x
    x = 362,957,651,379.54/991,901.40
  6. Step 6: Final answer
    x = 365,921.10

Related Problems

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Half scale
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Double scale
Find fourth proportional to 991,902.40, 1,487,853.60 and 243,948.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.