Home / 1,522,108.51-2,100,543.69-868,721.43

Finding the Fourth Proportional to 1,522,108.51, 2,100,543.69 and 868,721.43

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Solution

The fourth proportional to 1,522,108.51, 2,100,543.69 and 868,721.43 is: 1,198,854.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,522,108.51 : 2,100,543.69 = 868,721.43 : x
  2. Step 2: Convert to fraction form
    1,522,108.51/2,100,543.69 = 868,721.43/x
  3. Step 3: Cross multiply
    1,522,108.51x = 2,100,543.69 × 868,721.43
  4. Step 4: Simplify right side
    1,522,108.51x = 1,824,787,318,154.28
  5. Step 5: Solve for x
    x = 1,824,787,318,154.28/1,522,108.51
  6. Step 6: Final answer
    x = 1,198,854.95

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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.