Home / 488,610.20-732,380.70-172,904.60

Finding the Fourth Proportional to 488,610.20, 732,380.70 and 172,904.60

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Solution

The fourth proportional to 488,610.20, 732,380.70 and 172,904.60 is: 259,167.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,610.20 : 732,380.70 = 172,904.60 : x
  2. Step 2: Convert to fraction form
    488,610.20/732,380.70 = 172,904.60/x
  3. Step 3: Cross multiply
    488,610.20x = 732,380.70 × 172,904.60
  4. Step 4: Simplify right side
    488,610.20x = 126,631,991,981.22
  5. Step 5: Solve for x
    x = 126,631,991,981.22/488,610.20
  6. Step 6: Final answer
    x = 259,167.72

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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.