Home / 488,255.04-731,507.76-172,510.56

Finding the Fourth Proportional to 488,255.04, 731,507.76 and 172,510.56

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Solution

The fourth proportional to 488,255.04, 731,507.76 and 172,510.56 is: 258,456.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,255.04 : 731,507.76 = 172,510.56 : x
  2. Step 2: Convert to fraction form
    488,255.04/731,507.76 = 172,510.56/x
  3. Step 3: Cross multiply
    488,255.04x = 731,507.76 × 172,510.56
  4. Step 4: Simplify right side
    488,255.04x = 126,192,813,321.95
  5. Step 5: Solve for x
    x = 126,192,813,321.95/488,255.04
  6. Step 6: Final answer
    x = 258,456.76

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1.5x scale

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.