Home / 1,126,116.23-1,689,266.51-327,396.78

Finding the Fourth Proportional to 1,126,116.23, 1,689,266.51 and 327,396.78

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Solution

The fourth proportional to 1,126,116.23, 1,689,266.51 and 327,396.78 is: 491,121.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,116.23 : 1,689,266.51 = 327,396.78 : x
  2. Step 2: Convert to fraction form
    1,126,116.23/1,689,266.51 = 327,396.78/x
  3. Step 3: Cross multiply
    1,126,116.23x = 1,689,266.51 × 327,396.78
  4. Step 4: Simplify right side
    1,126,116.23x = 553,060,414,298.85
  5. Step 5: Solve for x
    x = 553,060,414,298.85/1,126,116.23
  6. Step 6: Final answer
    x = 491,121.97

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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.