Home / 913,427.20-1,370,140.80-441,035.20

Finding the Fourth Proportional to 913,427.20, 1,370,140.80 and 441,035.20

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Solution

The fourth proportional to 913,427.20, 1,370,140.80 and 441,035.20 is: 661,552.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,427.20 : 1,370,140.80 = 441,035.20 : x
  2. Step 2: Convert to fraction form
    913,427.20/1,370,140.80 = 441,035.20/x
  3. Step 3: Cross multiply
    913,427.20x = 1,370,140.80 × 441,035.20
  4. Step 4: Simplify right side
    913,427.20x = 604,280,321,756.16
  5. Step 5: Solve for x
    x = 604,280,321,756.16/913,427.20
  6. Step 6: Final answer
    x = 661,552.80

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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.