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Finding the Fourth Proportional to 439,014.86, 658,522.14 and 123,471.68

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Solution

The fourth proportional to 439,014.86, 658,522.14 and 123,471.68 is: 185,207.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,014.86 : 658,522.14 = 123,471.68 : x
  2. Step 2: Convert to fraction form
    439,014.86/658,522.14 = 123,471.68/x
  3. Step 3: Cross multiply
    439,014.86x = 658,522.14 × 123,471.68
  4. Step 4: Simplify right side
    439,014.86x = 81,308,834,943.00
  5. Step 5: Solve for x
    x = 81,308,834,943.00/439,014.86
  6. Step 6: Final answer
    x = 185,207.48

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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.