Home / 729,154.08-1,006,082.33-418,996.71

Finding the Fourth Proportional to 729,154.08, 1,006,082.33 and 418,996.71

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Solution

The fourth proportional to 729,154.08, 1,006,082.33 and 418,996.71 is: 578,129.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,154.08 : 1,006,082.33 = 418,996.71 : x
  2. Step 2: Convert to fraction form
    729,154.08/1,006,082.33 = 418,996.71/x
  3. Step 3: Cross multiply
    729,154.08x = 1,006,082.33 × 418,996.71
  4. Step 4: Simplify right side
    729,154.08x = 421,545,184,164.15
  5. Step 5: Solve for x
    x = 421,545,184,164.15/729,154.08
  6. Step 6: Final answer
    x = 578,129.09

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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.