Home / 724,869.60-1,000,287.68-434,641.38

Finding the Fourth Proportional to 724,869.60, 1,000,287.68 and 434,641.38

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Solution

The fourth proportional to 724,869.60, 1,000,287.68 and 434,641.38 is: 599,785.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,869.60 : 1,000,287.68 = 434,641.38 : x
  2. Step 2: Convert to fraction form
    724,869.60/1,000,287.68 = 434,641.38/x
  3. Step 3: Cross multiply
    724,869.60x = 1,000,287.68 × 434,641.38
  4. Step 4: Simplify right side
    724,869.60x = 434,766,417,632.20
  5. Step 5: Solve for x
    x = 434,766,417,632.20/724,869.60
  6. Step 6: Final answer
    x = 599,785.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.