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Finding the Fourth Proportional to 637,689.85, 956,507.10 and 238,334.08

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Solution

The fourth proportional to 637,689.85, 956,507.10 and 238,334.08 is: 357,490.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,689.85 : 956,507.10 = 238,334.08 : x
  2. Step 2: Convert to fraction form
    637,689.85/956,507.10 = 238,334.08/x
  3. Step 3: Cross multiply
    637,689.85x = 956,507.10 × 238,334.08
  4. Step 4: Simplify right side
    637,689.85x = 227,968,239,691.97
  5. Step 5: Solve for x
    x = 227,968,239,691.97/637,689.85
  6. Step 6: Final answer
    x = 357,490.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.