Home / 1,085,894.97-1,627,874.55-412,449.20

Finding the Fourth Proportional to 1,085,894.97, 1,627,874.55 and 412,449.20

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Solution

The fourth proportional to 1,085,894.97, 1,627,874.55 and 412,449.20 is: 618,306.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,894.97 : 1,627,874.55 = 412,449.20 : x
  2. Step 2: Convert to fraction form
    1,085,894.97/1,627,874.55 = 412,449.20/x
  3. Step 3: Cross multiply
    1,085,894.97x = 1,627,874.55 × 412,449.20
  4. Step 4: Simplify right side
    1,085,894.97x = 671,415,553,813.02
  5. Step 5: Solve for x
    x = 671,415,553,813.02/1,085,894.97
  6. Step 6: Final answer
    x = 618,306.17

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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.