Home / 1,387,517.86-2,080,990.78-534,296.72

Finding the Fourth Proportional to 1,387,517.86, 2,080,990.78 and 534,296.72

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Solution

The fourth proportional to 1,387,517.86, 2,080,990.78 and 534,296.72 is: 801,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,517.86 : 2,080,990.78 = 534,296.72 : x
  2. Step 2: Convert to fraction form
    1,387,517.86/2,080,990.78 = 534,296.72/x
  3. Step 3: Cross multiply
    1,387,517.86x = 2,080,990.78 × 534,296.72
  4. Step 4: Simplify right side
    1,387,517.86x = 1,111,866,548,104.24
  5. Step 5: Solve for x
    x = 1,111,866,548,104.24/1,387,517.86
  6. Step 6: Final answer
    x = 801,334.95

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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.