Home / 3,911,979.28-5,866,033.56-1,387,256.08

Finding the Fourth Proportional to 3,911,979.28, 5,866,033.56 and 1,387,256.08

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Solution

The fourth proportional to 3,911,979.28, 5,866,033.56 and 1,387,256.08 is: 2,080,197.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911,979.28 : 5,866,033.56 = 1,387,256.08 : x
  2. Step 2: Convert to fraction form
    3,911,979.28/5,866,033.56 = 1,387,256.08/x
  3. Step 3: Cross multiply
    3,911,979.28x = 5,866,033.56 × 1,387,256.08
  4. Step 4: Simplify right side
    3,911,979.28x = 8,137,690,721,594.05
  5. Step 5: Solve for x
    x = 8,137,690,721,594.05/3,911,979.28
  6. Step 6: Final answer
    x = 2,080,197.81

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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.