Home / 1,449,418.80-2,174,128.20-917,540.40

Finding the Fourth Proportional to 1,449,418.80, 2,174,128.20 and 917,540.40

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Solution

The fourth proportional to 1,449,418.80, 2,174,128.20 and 917,540.40 is: 1,376,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,418.80 : 2,174,128.20 = 917,540.40 : x
  2. Step 2: Convert to fraction form
    1,449,418.80/2,174,128.20 = 917,540.40/x
  3. Step 3: Cross multiply
    1,449,418.80x = 2,174,128.20 × 917,540.40
  4. Step 4: Simplify right side
    1,449,418.80x = 1,994,850,458,279.28
  5. Step 5: Solve for x
    x = 1,994,850,458,279.28/1,449,418.80
  6. Step 6: Final answer
    x = 1,376,310.60

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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.