Home / 488,623.20-732,740.40-172,917.60

Finding the Fourth Proportional to 488,623.20, 732,740.40 and 172,917.60

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Solution

The fourth proportional to 488,623.20, 732,740.40 and 172,917.60 is: 259,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,623.20 : 732,740.40 = 172,917.60 : x
  2. Step 2: Convert to fraction form
    488,623.20/732,740.40 = 172,917.60/x
  3. Step 3: Cross multiply
    488,623.20x = 732,740.40 × 172,917.60
  4. Step 4: Simplify right side
    488,623.20x = 126,703,711,391.04
  5. Step 5: Solve for x
    x = 126,703,711,391.04/488,623.20
  6. Step 6: Final answer
    x = 259,307.60

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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.