Home / 1,329,436.35-1,993,736.19-430,669.53

Finding the Fourth Proportional to 1,329,436.35, 1,993,736.19 and 430,669.53

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Solution

The fourth proportional to 1,329,436.35, 1,993,736.19 and 430,669.53 is: 645,868.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,436.35 : 1,993,736.19 = 430,669.53 : x
  2. Step 2: Convert to fraction form
    1,329,436.35/1,993,736.19 = 430,669.53/x
  3. Step 3: Cross multiply
    1,329,436.35x = 1,993,736.19 × 430,669.53
  4. Step 4: Simplify right side
    1,329,436.35x = 858,641,427,891.29
  5. Step 5: Solve for x
    x = 858,641,427,891.29/1,329,436.35
  6. Step 6: Final answer
    x = 645,868.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.