Home / 1,131,023.68-1,698,780.72-676,490.56

Finding the Fourth Proportional to 1,131,023.68, 1,698,780.72 and 676,490.56

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Solution

The fourth proportional to 1,131,023.68, 1,698,780.72 and 676,490.56 is: 1,016,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,023.68 : 1,698,780.72 = 676,490.56 : x
  2. Step 2: Convert to fraction form
    1,131,023.68/1,698,780.72 = 676,490.56/x
  3. Step 3: Cross multiply
    1,131,023.68x = 1,698,780.72 × 676,490.56
  4. Step 4: Simplify right side
    1,131,023.68x = 1,149,209,120,590.00
  5. Step 5: Solve for x
    x = 1,149,209,120,590.00/1,131,023.68
  6. Step 6: Final answer
    x = 1,016,078.74

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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.