Home / 1,127,189.71-1,690,754.86-328,691.71

Finding the Fourth Proportional to 1,127,189.71, 1,690,754.86 and 328,691.71

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Solution

The fourth proportional to 1,127,189.71, 1,690,754.86 and 328,691.71 is: 493,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,189.71 : 1,690,754.86 = 328,691.71 : x
  2. Step 2: Convert to fraction form
    1,127,189.71/1,690,754.86 = 328,691.71/x
  3. Step 3: Cross multiply
    1,127,189.71x = 1,690,754.86 × 328,691.71
  4. Step 4: Simplify right side
    1,127,189.71x = 555,737,106,124.21
  5. Step 5: Solve for x
    x = 555,737,106,124.21/1,127,189.71
  6. Step 6: Final answer
    x = 493,028.90

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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.