Home / 819,891.24-1,229,443.20-464,809.92

Finding the Fourth Proportional to 819,891.24, 1,229,443.20 and 464,809.92

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Solution

The fourth proportional to 819,891.24, 1,229,443.20 and 464,809.92 is: 696,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,891.24 : 1,229,443.20 = 464,809.92 : x
  2. Step 2: Convert to fraction form
    819,891.24/1,229,443.20 = 464,809.92/x
  3. Step 3: Cross multiply
    819,891.24x = 1,229,443.20 × 464,809.92
  4. Step 4: Simplify right side
    819,891.24x = 571,457,395,436.54
  5. Step 5: Solve for x
    x = 571,457,395,436.54/819,891.24
  6. Step 6: Final answer
    x = 696,991.71

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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.