Home / 804,634.60-1,206,951.90-431,386.60

Finding the Fourth Proportional to 804,634.60, 1,206,951.90 and 431,386.60

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Solution

The fourth proportional to 804,634.60, 1,206,951.90 and 431,386.60 is: 647,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,634.60 : 1,206,951.90 = 431,386.60 : x
  2. Step 2: Convert to fraction form
    804,634.60/1,206,951.90 = 431,386.60/x
  3. Step 3: Cross multiply
    804,634.60x = 1,206,951.90 × 431,386.60
  4. Step 4: Simplify right side
    804,634.60x = 520,662,876,504.54
  5. Step 5: Solve for x
    x = 520,662,876,504.54/804,634.60
  6. Step 6: Final answer
    x = 647,079.90

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Similar ratio
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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.