Home / 1,211,828.38-1,672,247.09-667,934.24

Finding the Fourth Proportional to 1,211,828.38, 1,672,247.09 and 667,934.24

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Solution

The fourth proportional to 1,211,828.38, 1,672,247.09 and 667,934.24 is: 921,707.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,828.38 : 1,672,247.09 = 667,934.24 : x
  2. Step 2: Convert to fraction form
    1,211,828.38/1,672,247.09 = 667,934.24/x
  3. Step 3: Cross multiply
    1,211,828.38x = 1,672,247.09 × 667,934.24
  4. Step 4: Simplify right side
    1,211,828.38x = 1,116,951,082,459.96
  5. Step 5: Solve for x
    x = 1,116,951,082,459.96/1,211,828.38
  6. Step 6: Final answer
    x = 921,707.32

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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.