Home / 439,616.35-659,332.25-123,999.45

Finding the Fourth Proportional to 439,616.35, 659,332.25 and 123,999.45

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Solution

The fourth proportional to 439,616.35, 659,332.25 and 123,999.45 is: 185,973.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,616.35 : 659,332.25 = 123,999.45 : x
  2. Step 2: Convert to fraction form
    439,616.35/659,332.25 = 123,999.45/x
  3. Step 3: Cross multiply
    439,616.35x = 659,332.25 × 123,999.45
  4. Step 4: Simplify right side
    439,616.35x = 81,756,836,367.26
  5. Step 5: Solve for x
    x = 81,756,836,367.26/439,616.35
  6. Step 6: Final answer
    x = 185,973.15

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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.