Home / 1,242,540.50-1,713,862.92-806,178.24

Finding the Fourth Proportional to 1,242,540.50, 1,713,862.92 and 806,178.24

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Solution

The fourth proportional to 1,242,540.50, 1,713,862.92 and 806,178.24 is: 1,111,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,540.50 : 1,713,862.92 = 806,178.24 : x
  2. Step 2: Convert to fraction form
    1,242,540.50/1,713,862.92 = 806,178.24/x
  3. Step 3: Cross multiply
    1,242,540.50x = 1,713,862.92 × 806,178.24
  4. Step 4: Simplify right side
    1,242,540.50x = 1,381,678,992,446.86
  5. Step 5: Solve for x
    x = 1,381,678,992,446.86/1,242,540.50
  6. Step 6: Final answer
    x = 1,111,979.04

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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.