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Finding the Fourth Proportional to 477,330.72, 658,713.92 and 281,211.04

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Solution

The fourth proportional to 477,330.72, 658,713.92 and 281,211.04 is: 388,069.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,330.72 : 658,713.92 = 281,211.04 : x
  2. Step 2: Convert to fraction form
    477,330.72/658,713.92 = 281,211.04/x
  3. Step 3: Cross multiply
    477,330.72x = 658,713.92 × 281,211.04
  4. Step 4: Simplify right side
    477,330.72x = 185,237,626,505.68
  5. Step 5: Solve for x
    x = 185,237,626,505.68/477,330.72
  6. Step 6: Final answer
    x = 388,069.78

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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.