Home / 2,659,791.13-3,990,320.92-862,678.55

Finding the Fourth Proportional to 2,659,791.13, 3,990,320.92 and 862,678.55

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Solution

The fourth proportional to 2,659,791.13, 3,990,320.92 and 862,678.55 is: 1,294,223.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659,791.13 : 3,990,320.92 = 862,678.55 : x
  2. Step 2: Convert to fraction form
    2,659,791.13/3,990,320.92 = 862,678.55/x
  3. Step 3: Cross multiply
    2,659,791.13x = 3,990,320.92 × 862,678.55
  4. Step 4: Simplify right side
    2,659,791.13x = 3,442,364,276,354.42
  5. Step 5: Solve for x
    x = 3,442,364,276,354.42/2,659,791.13
  6. Step 6: Final answer
    x = 1,294,223.54

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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.