Home / 1,211,658.66-1,672,082.04-667,794.90

Finding the Fourth Proportional to 1,211,658.66, 1,672,082.04 and 667,794.90

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Solution

The fourth proportional to 1,211,658.66, 1,672,082.04 and 667,794.90 is: 921,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,658.66 : 1,672,082.04 = 667,794.90 : x
  2. Step 2: Convert to fraction form
    1,211,658.66/1,672,082.04 = 667,794.90/x
  3. Step 3: Cross multiply
    1,211,658.66x = 1,672,082.04 × 667,794.90
  4. Step 4: Simplify right side
    1,211,658.66x = 1,116,607,858,693.60
  5. Step 5: Solve for x
    x = 1,116,607,858,693.60/1,211,658.66
  6. Step 6: Final answer
    x = 921,553.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.