Home / 1,221,978.10-1,832,967.15-798,963.70

Finding the Fourth Proportional to 1,221,978.10, 1,832,967.15 and 798,963.70

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Solution

The fourth proportional to 1,221,978.10, 1,832,967.15 and 798,963.70 is: 1,198,445.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,978.10 : 1,832,967.15 = 798,963.70 : x
  2. Step 2: Convert to fraction form
    1,221,978.10/1,832,967.15 = 798,963.70/x
  3. Step 3: Cross multiply
    1,221,978.10x = 1,832,967.15 × 798,963.70
  4. Step 4: Simplify right side
    1,221,978.10x = 1,464,474,216,142.45
  5. Step 5: Solve for x
    x = 1,464,474,216,142.45/1,221,978.10
  6. Step 6: Final answer
    x = 1,198,445.55

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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.