Home / 439,427.28-659,082.60-123,909.60

Finding the Fourth Proportional to 439,427.28, 659,082.60 and 123,909.60

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Solution

The fourth proportional to 439,427.28, 659,082.60 and 123,909.60 is: 185,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,427.28 : 659,082.60 = 123,909.60 : x
  2. Step 2: Convert to fraction form
    439,427.28/659,082.60 = 123,909.60/x
  3. Step 3: Cross multiply
    439,427.28x = 659,082.60 × 123,909.60
  4. Step 4: Simplify right side
    439,427.28x = 81,666,661,332.96
  5. Step 5: Solve for x
    x = 81,666,661,332.96/439,427.28
  6. Step 6: Final answer
    x = 185,847.95

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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.