Home / 812,359.29-1,121,067.68-468,005.25

Finding the Fourth Proportional to 812,359.29, 1,121,067.68 and 468,005.25

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Solution

The fourth proportional to 812,359.29, 1,121,067.68 and 468,005.25 is: 645,854.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,359.29 : 1,121,067.68 = 468,005.25 : x
  2. Step 2: Convert to fraction form
    812,359.29/1,121,067.68 = 468,005.25/x
  3. Step 3: Cross multiply
    812,359.29x = 1,121,067.68 × 468,005.25
  4. Step 4: Simplify right side
    812,359.29x = 524,665,557,505.29
  5. Step 5: Solve for x
    x = 524,665,557,505.29/812,359.29
  6. Step 6: Final answer
    x = 645,854.07

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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.