Home / 2,187,689.28-3,281,520.12-1,177,287.16

Finding the Fourth Proportional to 2,187,689.28, 3,281,520.12 and 1,177,287.16

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Solution

The fourth proportional to 2,187,689.28, 3,281,520.12 and 1,177,287.16 is: 1,765,923.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,689.28 : 3,281,520.12 = 1,177,287.16 : x
  2. Step 2: Convert to fraction form
    2,187,689.28/3,281,520.12 = 1,177,287.16/x
  3. Step 3: Cross multiply
    2,187,689.28x = 3,281,520.12 × 1,177,287.16
  4. Step 4: Simplify right side
    2,187,689.28x = 3,863,291,502,557.66
  5. Step 5: Solve for x
    x = 3,863,291,502,557.66/2,187,689.28
  6. Step 6: Final answer
    x = 1,765,923.31

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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.