Home / 2,278,279.20-3,417,418.80-1,212,772.80

Finding the Fourth Proportional to 2,278,279.20, 3,417,418.80 and 1,212,772.80

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Solution

The fourth proportional to 2,278,279.20, 3,417,418.80 and 1,212,772.80 is: 1,819,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278,279.20 : 3,417,418.80 = 1,212,772.80 : x
  2. Step 2: Convert to fraction form
    2,278,279.20/3,417,418.80 = 1,212,772.80/x
  3. Step 3: Cross multiply
    2,278,279.20x = 3,417,418.80 × 1,212,772.80
  4. Step 4: Simplify right side
    2,278,279.20x = 4,144,552,566,848.64
  5. Step 5: Solve for x
    x = 4,144,552,566,848.64/2,278,279.20
  6. Step 6: Final answer
    x = 1,819,159.20

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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.