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Finding the Fourth Proportional to 658,207.44, 908,326.98 and 356,400.72

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Solution

The fourth proportional to 658,207.44, 908,326.98 and 356,400.72 is: 491,833.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,207.44 : 908,326.98 = 356,400.72 : x
  2. Step 2: Convert to fraction form
    658,207.44/908,326.98 = 356,400.72/x
  3. Step 3: Cross multiply
    658,207.44x = 908,326.98 × 356,400.72
  4. Step 4: Simplify right side
    658,207.44x = 323,728,389,667.43
  5. Step 5: Solve for x
    x = 323,728,389,667.43/658,207.44
  6. Step 6: Final answer
    x = 491,833.38

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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.