Home / 724,822.60-1,087,233.90-472,880.20

Finding the Fourth Proportional to 724,822.60, 1,087,233.90 and 472,880.20

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Solution

The fourth proportional to 724,822.60, 1,087,233.90 and 472,880.20 is: 709,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,822.60 : 1,087,233.90 = 472,880.20 : x
  2. Step 2: Convert to fraction form
    724,822.60/1,087,233.90 = 472,880.20/x
  3. Step 3: Cross multiply
    724,822.60x = 1,087,233.90 × 472,880.20
  4. Step 4: Simplify right side
    724,822.60x = 514,131,384,078.78
  5. Step 5: Solve for x
    x = 514,131,384,078.78/724,822.60
  6. Step 6: Final answer
    x = 709,320.30

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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.