Home / 1,121,190.55-1,680,785.92-411,053.11

Finding the Fourth Proportional to 1,121,190.55, 1,680,785.92 and 411,053.11

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Solution

The fourth proportional to 1,121,190.55, 1,680,785.92 and 411,053.11 is: 616,213.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,190.55 : 1,680,785.92 = 411,053.11 : x
  2. Step 2: Convert to fraction form
    1,121,190.55/1,680,785.92 = 411,053.11/x
  3. Step 3: Cross multiply
    1,121,190.55x = 1,680,785.92 × 411,053.11
  4. Step 4: Simplify right side
    1,121,190.55x = 690,892,279,660.21
  5. Step 5: Solve for x
    x = 690,892,279,660.21/1,121,190.55
  6. Step 6: Final answer
    x = 616,213.08

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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.