Home / 1,115,892.86-1,540,100.38-680,562.89

Finding the Fourth Proportional to 1,115,892.86, 1,540,100.38 and 680,562.89

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Solution

The fourth proportional to 1,115,892.86, 1,540,100.38 and 680,562.89 is: 939,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,892.86 : 1,540,100.38 = 680,562.89 : x
  2. Step 2: Convert to fraction form
    1,115,892.86/1,540,100.38 = 680,562.89/x
  3. Step 3: Cross multiply
    1,115,892.86x = 1,540,100.38 × 680,562.89
  4. Step 4: Simplify right side
    1,115,892.86x = 1,048,135,165,502.90
  5. Step 5: Solve for x
    x = 1,048,135,165,502.90/1,115,892.86
  6. Step 6: Final answer
    x = 939,279.39

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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.