Home / 1,980,218.54-2,732,233.17-1,120,778.78

Finding the Fourth Proportional to 1,980,218.54, 2,732,233.17 and 1,120,778.78

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Solution

The fourth proportional to 1,980,218.54, 2,732,233.17 and 1,120,778.78 is: 1,546,409.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,218.54 : 2,732,233.17 = 1,120,778.78 : x
  2. Step 2: Convert to fraction form
    1,980,218.54/2,732,233.17 = 1,120,778.78/x
  3. Step 3: Cross multiply
    1,980,218.54x = 2,732,233.17 × 1,120,778.78
  4. Step 4: Simplify right side
    1,980,218.54x = 3,062,228,949,489.89
  5. Step 5: Solve for x
    x = 3,062,228,949,489.89/1,980,218.54
  6. Step 6: Final answer
    x = 1,546,409.59

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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.