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Finding the Fourth Proportional to 658,202.56, 908,049.03 and 400,037.91

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Solution

The fourth proportional to 658,202.56, 908,049.03 and 400,037.91 is: 551,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,202.56 : 908,049.03 = 400,037.91 : x
  2. Step 2: Convert to fraction form
    658,202.56/908,049.03 = 400,037.91/x
  3. Step 3: Cross multiply
    658,202.56x = 908,049.03 × 400,037.91
  4. Step 4: Simplify right side
    658,202.56x = 363,254,036,138.73
  5. Step 5: Solve for x
    x = 363,254,036,138.73/658,202.56
  6. Step 6: Final answer
    x = 551,887.91

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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.