Home / 819,786.30-1,229,679.45-579,248.70

Finding the Fourth Proportional to 819,786.30, 1,229,679.45 and 579,248.70

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Solution

The fourth proportional to 819,786.30, 1,229,679.45 and 579,248.70 is: 868,873.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,786.30 : 1,229,679.45 = 579,248.70 : x
  2. Step 2: Convert to fraction form
    819,786.30/1,229,679.45 = 579,248.70/x
  3. Step 3: Cross multiply
    819,786.30x = 1,229,679.45 × 579,248.70
  4. Step 4: Simplify right side
    819,786.30x = 712,290,222,829.22
  5. Step 5: Solve for x
    x = 712,290,222,829.22/819,786.30
  6. Step 6: Final answer
    x = 868,873.05

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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.