Home / 1,260,417.64-1,739,375.28-687,456.04

Finding the Fourth Proportional to 1,260,417.64, 1,739,375.28 and 687,456.04

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Solution

The fourth proportional to 1,260,417.64, 1,739,375.28 and 687,456.04 is: 948,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,417.64 : 1,739,375.28 = 687,456.04 : x
  2. Step 2: Convert to fraction form
    1,260,417.64/1,739,375.28 = 687,456.04/x
  3. Step 3: Cross multiply
    1,260,417.64x = 1,739,375.28 × 687,456.04
  4. Step 4: Simplify right side
    1,260,417.64x = 1,195,744,042,062.69
  5. Step 5: Solve for x
    x = 1,195,744,042,062.69/1,260,417.64
  6. Step 6: Final answer
    x = 948,688.76

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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.