Home / 804,929.20-1,207,393.80-431,681.20

Finding the Fourth Proportional to 804,929.20, 1,207,393.80 and 431,681.20

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Solution

The fourth proportional to 804,929.20, 1,207,393.80 and 431,681.20 is: 647,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,929.20 : 1,207,393.80 = 431,681.20 : x
  2. Step 2: Convert to fraction form
    804,929.20/1,207,393.80 = 431,681.20/x
  3. Step 3: Cross multiply
    804,929.20x = 1,207,393.80 × 431,681.20
  4. Step 4: Simplify right side
    804,929.20x = 521,209,204,456.56
  5. Step 5: Solve for x
    x = 521,209,204,456.56/804,929.20
  6. Step 6: Final answer
    x = 647,521.80

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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.