Home / 724,687.92-1,000,035.90-402,418.44

Finding the Fourth Proportional to 724,687.92, 1,000,035.90 and 402,418.44

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Solution

The fourth proportional to 724,687.92, 1,000,035.90 and 402,418.44 is: 555,318.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,687.92 : 1,000,035.90 = 402,418.44 : x
  2. Step 2: Convert to fraction form
    724,687.92/1,000,035.90 = 402,418.44/x
  3. Step 3: Cross multiply
    724,687.92x = 1,000,035.90 × 402,418.44
  4. Step 4: Simplify right side
    724,687.92x = 402,432,886,822.00
  5. Step 5: Solve for x
    x = 402,432,886,822.00/724,687.92
  6. Step 6: Final answer
    x = 555,318.88

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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.