Home / 880,132.20-1,321,073.10-431,359.80

Finding the Fourth Proportional to 880,132.20, 1,321,073.10 and 431,359.80

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Solution

The fourth proportional to 880,132.20, 1,321,073.10 and 431,359.80 is: 647,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,132.20 : 1,321,073.10 = 431,359.80 : x
  2. Step 2: Convert to fraction form
    880,132.20/1,321,073.10 = 431,359.80/x
  3. Step 3: Cross multiply
    880,132.20x = 1,321,073.10 × 431,359.80
  4. Step 4: Simplify right side
    880,132.20x = 569,857,828,201.38
  5. Step 5: Solve for x
    x = 569,857,828,201.38/880,132.20
  6. Step 6: Final answer
    x = 647,468.45

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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.