Home / 488,621.20-732,737.40-172,915.60

Finding the Fourth Proportional to 488,621.20, 732,737.40 and 172,915.60

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Solution

The fourth proportional to 488,621.20, 732,737.40 and 172,915.60 is: 259,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,621.20 : 732,737.40 = 172,915.60 : x
  2. Step 2: Convert to fraction form
    488,621.20/732,737.40 = 172,915.60/x
  3. Step 3: Cross multiply
    488,621.20x = 732,737.40 × 172,915.60
  4. Step 4: Simplify right side
    488,621.20x = 126,701,727,163.44
  5. Step 5: Solve for x
    x = 126,701,727,163.44/488,621.20
  6. Step 6: Final answer
    x = 259,304.60

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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.