Home / 1,115,732.90-1,540,452.88-857,149.28

Finding the Fourth Proportional to 1,115,732.90, 1,540,452.88 and 857,149.28

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Solution

The fourth proportional to 1,115,732.90, 1,540,452.88 and 857,149.28 is: 1,183,435.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,732.90 : 1,540,452.88 = 857,149.28 : x
  2. Step 2: Convert to fraction form
    1,115,732.90/1,540,452.88 = 857,149.28/x
  3. Step 3: Cross multiply
    1,115,732.90x = 1,540,452.88 × 857,149.28
  4. Step 4: Simplify right side
    1,115,732.90x = 1,320,398,076,965.93
  5. Step 5: Solve for x
    x = 1,320,398,076,965.93/1,115,732.90
  6. Step 6: Final answer
    x = 1,183,435.64

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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.