Home / 687,717.20-1,032,013.20-403,407.20

Finding the Fourth Proportional to 687,717.20, 1,032,013.20 and 403,407.20

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Solution

The fourth proportional to 687,717.20, 1,032,013.20 and 403,407.20 is: 605,367.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,717.20 : 1,032,013.20 = 403,407.20 : x
  2. Step 2: Convert to fraction form
    687,717.20/1,032,013.20 = 403,407.20/x
  3. Step 3: Cross multiply
    687,717.20x = 1,032,013.20 × 403,407.20
  4. Step 4: Simplify right side
    687,717.20x = 416,321,555,375.04
  5. Step 5: Solve for x
    x = 416,321,555,375.04/687,717.20
  6. Step 6: Final answer
    x = 605,367.37

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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.