Home / 1,211,623.28-1,672,034.63-667,757.88

Finding the Fourth Proportional to 1,211,623.28, 1,672,034.63 and 667,757.88

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Solution

The fourth proportional to 1,211,623.28, 1,672,034.63 and 667,757.88 is: 921,502.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,623.28 : 1,672,034.63 = 667,757.88 : x
  2. Step 2: Convert to fraction form
    1,211,623.28/1,672,034.63 = 667,757.88/x
  3. Step 3: Cross multiply
    1,211,623.28x = 1,672,034.63 × 667,757.88
  4. Step 4: Simplify right side
    1,211,623.28x = 1,116,514,299,815.38
  5. Step 5: Solve for x
    x = 1,116,514,299,815.38/1,211,623.28
  6. Step 6: Final answer
    x = 921,502.85

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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.