Home / 1,221,364.80-1,832,047.20-1,109,171.70

Finding the Fourth Proportional to 1,221,364.80, 1,832,047.20 and 1,109,171.70

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Solution

The fourth proportional to 1,221,364.80, 1,832,047.20 and 1,109,171.70 is: 1,663,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,364.80 : 1,832,047.20 = 1,109,171.70 : x
  2. Step 2: Convert to fraction form
    1,221,364.80/1,832,047.20 = 1,109,171.70/x
  3. Step 3: Cross multiply
    1,221,364.80x = 1,832,047.20 × 1,109,171.70
  4. Step 4: Simplify right side
    1,221,364.80x = 2,032,054,907,304.24
  5. Step 5: Solve for x
    x = 2,032,054,907,304.24/1,221,364.80
  6. Step 6: Final answer
    x = 1,663,757.55

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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.