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Finding the Fourth Proportional to 2,657,448, 3,986,172 and 861,833.52

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Solution

The fourth proportional to 2,657,448, 3,986,172 and 861,833.52 is: 1,292,750.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657,448 : 3,986,172 = 861,833.52 : x
  2. Step 2: Convert to fraction form
    2,657,448/3,986,172 = 861,833.52/x
  3. Step 3: Cross multiply
    2,657,448x = 3,986,172 × 861,833.52
  4. Step 4: Simplify right side
    2,657,448x = 3,435,416,646,085.44
  5. Step 5: Solve for x
    x = 3,435,416,646,085.44/2,657,448
  6. Step 6: Final answer
    x = 1,292,750.28

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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.