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Finding the Fourth Proportional to 658,160.70, 908,351.97 and 378,752.15

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Solution

The fourth proportional to 658,160.70, 908,351.97 and 378,752.15 is: 522,729.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,160.70 : 908,351.97 = 378,752.15 : x
  2. Step 2: Convert to fraction form
    658,160.70/908,351.97 = 378,752.15/x
  3. Step 3: Cross multiply
    658,160.70x = 908,351.97 × 378,752.15
  4. Step 4: Simplify right side
    658,160.70x = 344,040,257,052.48
  5. Step 5: Solve for x
    x = 344,040,257,052.48/658,160.70
  6. Step 6: Final answer
    x = 522,729.87

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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.