Home / 439,814.80-659,616.60-124,301.20

Finding the Fourth Proportional to 439,814.80, 659,616.60 and 124,301.20

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Solution

The fourth proportional to 439,814.80, 659,616.60 and 124,301.20 is: 186,421.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,814.80 : 659,616.60 = 124,301.20 : x
  2. Step 2: Convert to fraction form
    439,814.80/659,616.60 = 124,301.20/x
  3. Step 3: Cross multiply
    439,814.80x = 659,616.60 × 124,301.20
  4. Step 4: Simplify right side
    439,814.80x = 81,991,134,919.92
  5. Step 5: Solve for x
    x = 81,991,134,919.92/439,814.80
  6. Step 6: Final answer
    x = 186,421.96

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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.