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Finding the Fourth Proportional to 658,535.43, 908,778.92 and 356,729.43

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Solution

The fourth proportional to 658,535.43, 908,778.92 and 356,729.43 is: 492,286.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,535.43 : 908,778.92 = 356,729.43 : x
  2. Step 2: Convert to fraction form
    658,535.43/908,778.92 = 356,729.43/x
  3. Step 3: Cross multiply
    658,535.43x = 908,778.92 × 356,729.43
  4. Step 4: Simplify right side
    658,535.43x = 324,188,184,343.97
  5. Step 5: Solve for x
    x = 324,188,184,343.97/658,535.43
  6. Step 6: Final answer
    x = 492,286.63

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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.