Home / 1,448,651.10-1,999,139.79-868,211.38

Finding the Fourth Proportional to 1,448,651.10, 1,999,139.79 and 868,211.38

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Solution

The fourth proportional to 1,448,651.10, 1,999,139.79 and 868,211.38 is: 1,198,132.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448,651.10 : 1,999,139.79 = 868,211.38 : x
  2. Step 2: Convert to fraction form
    1,448,651.10/1,999,139.79 = 868,211.38/x
  3. Step 3: Cross multiply
    1,448,651.10x = 1,999,139.79 × 868,211.38
  4. Step 4: Simplify right side
    1,448,651.10x = 1,735,675,921,643.53
  5. Step 5: Solve for x
    x = 1,735,675,921,643.53/1,448,651.10
  6. Step 6: Final answer
    x = 1,198,132.47

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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.