Home / 721,781.61-1,082,180.34-366,109.80

Finding the Fourth Proportional to 721,781.61, 1,082,180.34 and 366,109.80

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Solution

The fourth proportional to 721,781.61, 1,082,180.34 and 366,109.80 is: 548,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,781.61 : 1,082,180.34 = 366,109.80 : x
  2. Step 2: Convert to fraction form
    721,781.61/1,082,180.34 = 366,109.80/x
  3. Step 3: Cross multiply
    721,781.61x = 1,082,180.34 × 366,109.80
  4. Step 4: Simplify right side
    721,781.61x = 396,196,827,841.33
  5. Step 5: Solve for x
    x = 396,196,827,841.33/721,781.61
  6. Step 6: Final answer
    x = 548,915.10

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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.