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Finding the Fourth Proportional to 664,999.41, 997,711.61 and 238,247.13

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Solution

The fourth proportional to 664,999.41, 997,711.61 and 238,247.13 is: 357,446.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,999.41 : 997,711.61 = 238,247.13 : x
  2. Step 2: Convert to fraction form
    664,999.41/997,711.61 = 238,247.13/x
  3. Step 3: Cross multiply
    664,999.41x = 997,711.61 × 238,247.13
  4. Step 4: Simplify right side
    664,999.41x = 237,701,926,458.94
  5. Step 5: Solve for x
    x = 237,701,926,458.94/664,999.41
  6. Step 6: Final answer
    x = 357,446.82

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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.