Home / 1,127,002.68-1,690,780.50-328,291.56

Finding the Fourth Proportional to 1,127,002.68, 1,690,780.50 and 328,291.56

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Solution

The fourth proportional to 1,127,002.68, 1,690,780.50 and 328,291.56 is: 492,517.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,002.68 : 1,690,780.50 = 328,291.56 : x
  2. Step 2: Convert to fraction form
    1,127,002.68/1,690,780.50 = 328,291.56/x
  3. Step 3: Cross multiply
    1,127,002.68x = 1,690,780.50 × 328,291.56
  4. Step 4: Simplify right side
    1,127,002.68x = 555,068,967,962.58
  5. Step 5: Solve for x
    x = 555,068,967,962.58/1,127,002.68
  6. Step 6: Final answer
    x = 492,517.88

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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.