Home / 1,293,974.92-1,785,661.32-721,002.88

Finding the Fourth Proportional to 1,293,974.92, 1,785,661.32 and 721,002.88

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Solution

The fourth proportional to 1,293,974.92, 1,785,661.32 and 721,002.88 is: 994,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,974.92 : 1,785,661.32 = 721,002.88 : x
  2. Step 2: Convert to fraction form
    1,293,974.92/1,785,661.32 = 721,002.88/x
  3. Step 3: Cross multiply
    1,293,974.92x = 1,785,661.32 × 721,002.88
  4. Step 4: Simplify right side
    1,293,974.92x = 1,287,466,954,424.60
  5. Step 5: Solve for x
    x = 1,287,466,954,424.60/1,293,974.92
  6. Step 6: Final answer
    x = 994,970.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.