Home / 439,331.10-659,120.67-123,790.74

Finding the Fourth Proportional to 439,331.10, 659,120.67 and 123,790.74

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Solution

The fourth proportional to 439,331.10, 659,120.67 and 123,790.74 is: 185,721.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,331.10 : 659,120.67 = 123,790.74 : x
  2. Step 2: Convert to fraction form
    439,331.10/659,120.67 = 123,790.74/x
  3. Step 3: Cross multiply
    439,331.10x = 659,120.67 × 123,790.74
  4. Step 4: Simplify right side
    439,331.10x = 81,593,035,488.60
  5. Step 5: Solve for x
    x = 81,593,035,488.60/439,331.10
  6. Step 6: Final answer
    x = 185,721.06

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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.