Home / 787,275.72-1,182,954.78-687,704.04

Finding the Fourth Proportional to 787,275.72, 1,182,954.78 and 687,704.04

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Solution

The fourth proportional to 787,275.72, 1,182,954.78 and 687,704.04 is: 1,033,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,275.72 : 1,182,954.78 = 687,704.04 : x
  2. Step 2: Convert to fraction form
    787,275.72/1,182,954.78 = 687,704.04/x
  3. Step 3: Cross multiply
    787,275.72x = 1,182,954.78 × 687,704.04
  4. Step 4: Simplify right side
    787,275.72x = 813,522,781,343.31
  5. Step 5: Solve for x
    x = 813,522,781,343.31/787,275.72
  6. Step 6: Final answer
    x = 1,033,339.10

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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.