Home / 1,098,512.10-1,645,003.35-722,499.30

Finding the Fourth Proportional to 1,098,512.10, 1,645,003.35 and 722,499.30

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Solution

The fourth proportional to 1,098,512.10, 1,645,003.35 and 722,499.30 is: 1,081,930.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,512.10 : 1,645,003.35 = 722,499.30 : x
  2. Step 2: Convert to fraction form
    1,098,512.10/1,645,003.35 = 722,499.30/x
  3. Step 3: Cross multiply
    1,098,512.10x = 1,645,003.35 × 722,499.30
  4. Step 4: Simplify right side
    1,098,512.10x = 1,188,513,768,872.66
  5. Step 5: Solve for x
    x = 1,188,513,768,872.66/1,098,512.10
  6. Step 6: Final answer
    x = 1,081,930.52

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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.