Home / 1,432,578.29-1,976,916.38-787,998.31

Finding the Fourth Proportional to 1,432,578.29, 1,976,916.38 and 787,998.31

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Solution

The fourth proportional to 1,432,578.29, 1,976,916.38 and 787,998.31 is: 1,087,414.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,578.29 : 1,976,916.38 = 787,998.31 : x
  2. Step 2: Convert to fraction form
    1,432,578.29/1,976,916.38 = 787,998.31/x
  3. Step 3: Cross multiply
    1,432,578.29x = 1,976,916.38 × 787,998.31
  4. Step 4: Simplify right side
    1,432,578.29x = 1,557,806,757,569.04
  5. Step 5: Solve for x
    x = 1,557,806,757,569.04/1,432,578.29
  6. Step 6: Final answer
    x = 1,087,414.75

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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.