Home / 439,216.40-658,932.60-123,669.20

Finding the Fourth Proportional to 439,216.40, 658,932.60 and 123,669.20

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Solution

The fourth proportional to 439,216.40, 658,932.60 and 123,669.20 is: 185,534.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,216.40 : 658,932.60 = 123,669.20 : x
  2. Step 2: Convert to fraction form
    439,216.40/658,932.60 = 123,669.20/x
  3. Step 3: Cross multiply
    439,216.40x = 658,932.60 × 123,669.20
  4. Step 4: Simplify right side
    439,216.40x = 81,489,667,495.92
  5. Step 5: Solve for x
    x = 81,489,667,495.92/439,216.40
  6. Step 6: Final answer
    x = 185,534.21

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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.