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Finding the Fourth Proportional to 492,767.70, 739,151.55 and 393,122.52

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Solution

The fourth proportional to 492,767.70, 739,151.55 and 393,122.52 is: 589,683.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,767.70 : 739,151.55 = 393,122.52 : x
  2. Step 2: Convert to fraction form
    492,767.70/739,151.55 = 393,122.52/x
  3. Step 3: Cross multiply
    492,767.70x = 739,151.55 × 393,122.52
  4. Step 4: Simplify right side
    492,767.70x = 290,577,119,997.91
  5. Step 5: Solve for x
    x = 290,577,119,997.91/492,767.70
  6. Step 6: Final answer
    x = 589,683.78

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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.