Home / 724,848.80-1,087,273.20-472,906.40

Finding the Fourth Proportional to 724,848.80, 1,087,273.20 and 472,906.40

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Solution

The fourth proportional to 724,848.80, 1,087,273.20 and 472,906.40 is: 709,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,848.80 : 1,087,273.20 = 472,906.40 : x
  2. Step 2: Convert to fraction form
    724,848.80/1,087,273.20 = 472,906.40/x
  3. Step 3: Cross multiply
    724,848.80x = 1,087,273.20 × 472,906.40
  4. Step 4: Simplify right side
    724,848.80x = 514,178,454,828.48
  5. Step 5: Solve for x
    x = 514,178,454,828.48/724,848.80
  6. Step 6: Final answer
    x = 709,359.60

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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.