Home / 804,974.20-1,207,461.30-431,726.20

Finding the Fourth Proportional to 804,974.20, 1,207,461.30 and 431,726.20

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Solution

The fourth proportional to 804,974.20, 1,207,461.30 and 431,726.20 is: 647,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,974.20 : 1,207,461.30 = 431,726.20 : x
  2. Step 2: Convert to fraction form
    804,974.20/1,207,461.30 = 431,726.20/x
  3. Step 3: Cross multiply
    804,974.20x = 1,207,461.30 × 431,726.20
  4. Step 4: Simplify right side
    804,974.20x = 521,292,678,696.06
  5. Step 5: Solve for x
    x = 521,292,678,696.06/804,974.20
  6. Step 6: Final answer
    x = 647,589.30

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Double scale
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Similar ratio
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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.