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Finding the Fourth Proportional to 439,188.58, 658,793.81 and 123,643.36

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Solution

The fourth proportional to 439,188.58, 658,793.81 and 123,643.36 is: 185,468.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,188.58 : 658,793.81 = 123,643.36 : x
  2. Step 2: Convert to fraction form
    439,188.58/658,793.81 = 123,643.36/x
  3. Step 3: Cross multiply
    439,188.58x = 658,793.81 × 123,643.36
  4. Step 4: Simplify right side
    439,188.58x = 81,455,480,652.71
  5. Step 5: Solve for x
    x = 81,455,480,652.71/439,188.58
  6. Step 6: Final answer
    x = 185,468.12

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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.