Home / 724,697.28-1,000,229.11-418,786.54

Finding the Fourth Proportional to 724,697.28, 1,000,229.11 and 418,786.54

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Solution

The fourth proportional to 724,697.28, 1,000,229.11 and 418,786.54 is: 578,010.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,697.28 : 1,000,229.11 = 418,786.54 : x
  2. Step 2: Convert to fraction form
    724,697.28/1,000,229.11 = 418,786.54/x
  3. Step 3: Cross multiply
    724,697.28x = 1,000,229.11 × 418,786.54
  4. Step 4: Simplify right side
    724,697.28x = 418,882,484,636.64
  5. Step 5: Solve for x
    x = 418,882,484,636.64/724,697.28
  6. Step 6: Final answer
    x = 578,010.29

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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.