Home / 436,939.59-655,479.86-129,222.75

Finding the Fourth Proportional to 436,939.59, 655,479.86 and 129,222.75

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Solution

The fourth proportional to 436,939.59, 655,479.86 and 129,222.75 is: 193,854.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,939.59 : 655,479.86 = 129,222.75 : x
  2. Step 2: Convert to fraction form
    436,939.59/655,479.86 = 129,222.75/x
  3. Step 3: Cross multiply
    436,939.59x = 655,479.86 × 129,222.75
  4. Step 4: Simplify right side
    436,939.59x = 84,702,909,432.70
  5. Step 5: Solve for x
    x = 84,702,909,432.70/436,939.59
  6. Step 6: Final answer
    x = 193,854.97

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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.