Home / 905,842.85-1,250,078.67-497,961.90

Finding the Fourth Proportional to 905,842.85, 1,250,078.67 and 497,961.90

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Solution

The fourth proportional to 905,842.85, 1,250,078.67 and 497,961.90 is: 687,195.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,842.85 : 1,250,078.67 = 497,961.90 : x
  2. Step 2: Convert to fraction form
    905,842.85/1,250,078.67 = 497,961.90/x
  3. Step 3: Cross multiply
    905,842.85x = 1,250,078.67 × 497,961.90
  4. Step 4: Simplify right side
    905,842.85x = 622,491,549,662.67
  5. Step 5: Solve for x
    x = 622,491,549,662.67/905,842.85
  6. Step 6: Final answer
    x = 687,195.97

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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.