Home / 758,144.85-1,045,988.04-500,149.95

Finding the Fourth Proportional to 758,144.85, 1,045,988.04 and 500,149.95

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Solution

The fourth proportional to 758,144.85, 1,045,988.04 and 500,149.95 is: 690,040.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,144.85 : 1,045,988.04 = 500,149.95 : x
  2. Step 2: Convert to fraction form
    758,144.85/1,045,988.04 = 500,149.95/x
  3. Step 3: Cross multiply
    758,144.85x = 1,045,988.04 × 500,149.95
  4. Step 4: Simplify right side
    758,144.85x = 523,150,865,906.60
  5. Step 5: Solve for x
    x = 523,150,865,906.60/758,144.85
  6. Step 6: Final answer
    x = 690,040.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.