Home / 1,182,984.38-1,632,518.49-639,120.17

Finding the Fourth Proportional to 1,182,984.38, 1,632,518.49 and 639,120.17

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Solution

The fourth proportional to 1,182,984.38, 1,632,518.49 and 639,120.17 is: 881,985.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,984.38 : 1,632,518.49 = 639,120.17 : x
  2. Step 2: Convert to fraction form
    1,182,984.38/1,632,518.49 = 639,120.17/x
  3. Step 3: Cross multiply
    1,182,984.38x = 1,632,518.49 × 639,120.17
  4. Step 4: Simplify right side
    1,182,984.38x = 1,043,375,494,856.94
  5. Step 5: Solve for x
    x = 1,043,375,494,856.94/1,182,984.38
  6. Step 6: Final answer
    x = 881,985.86

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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.