Home / 1,260,476.72-1,739,463.28-687,529.20

Finding the Fourth Proportional to 1,260,476.72, 1,739,463.28 and 687,529.20

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Solution

The fourth proportional to 1,260,476.72, 1,739,463.28 and 687,529.20 is: 948,793.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,476.72 : 1,739,463.28 = 687,529.20 : x
  2. Step 2: Convert to fraction form
    1,260,476.72/1,739,463.28 = 687,529.20/x
  3. Step 3: Cross multiply
    1,260,476.72x = 1,739,463.28 × 687,529.20
  4. Step 4: Simplify right side
    1,260,476.72x = 1,195,931,797,327.78
  5. Step 5: Solve for x
    x = 1,195,931,797,327.78/1,260,476.72
  6. Step 6: Final answer
    x = 948,793.24

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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.