Home / 803,721.60-1,206,772.80-449,443.20

Finding the Fourth Proportional to 803,721.60, 1,206,772.80 and 449,443.20

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Solution

The fourth proportional to 803,721.60, 1,206,772.80 and 449,443.20 is: 674,830.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,721.60 : 1,206,772.80 = 449,443.20 : x
  2. Step 2: Convert to fraction form
    803,721.60/1,206,772.80 = 449,443.20/x
  3. Step 3: Cross multiply
    803,721.60x = 1,206,772.80 × 449,443.20
  4. Step 4: Simplify right side
    803,721.60x = 542,375,828,904.96
  5. Step 5: Solve for x
    x = 542,375,828,904.96/803,721.60
  6. Step 6: Final answer
    x = 674,830.47

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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.