Home / 991,007.60-1,486,511.40-243,053.60

Finding the Fourth Proportional to 991,007.60, 1,486,511.40 and 243,053.60

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Solution

The fourth proportional to 991,007.60, 1,486,511.40 and 243,053.60 is: 364,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,007.60 : 1,486,511.40 = 243,053.60 : x
  2. Step 2: Convert to fraction form
    991,007.60/1,486,511.40 = 243,053.60/x
  3. Step 3: Cross multiply
    991,007.60x = 1,486,511.40 × 243,053.60
  4. Step 4: Simplify right side
    991,007.60x = 361,301,947,211.04
  5. Step 5: Solve for x
    x = 361,301,947,211.04/991,007.60
  6. Step 6: Final answer
    x = 364,580.40

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Half scale
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Double scale
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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.