Home / 2,378,487.86-3,282,321.84-1,290,759.20

Finding the Fourth Proportional to 2,378,487.86, 3,282,321.84 and 1,290,759.20

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Solution

The fourth proportional to 2,378,487.86, 3,282,321.84 and 1,290,759.20 is: 1,781,252.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378,487.86 : 3,282,321.84 = 1,290,759.20 : x
  2. Step 2: Convert to fraction form
    2,378,487.86/3,282,321.84 = 1,290,759.20/x
  3. Step 3: Cross multiply
    2,378,487.86x = 3,282,321.84 × 1,290,759.20
  4. Step 4: Simplify right side
    2,378,487.86x = 4,236,687,112,340.93
  5. Step 5: Solve for x
    x = 4,236,687,112,340.93/2,378,487.86
  6. Step 6: Final answer
    x = 1,781,252.36

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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.