Home / 1,215,200.90-1,822,801.35-1,112,849.30

Finding the Fourth Proportional to 1,215,200.90, 1,822,801.35 and 1,112,849.30

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Solution

The fourth proportional to 1,215,200.90, 1,822,801.35 and 1,112,849.30 is: 1,669,273.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,200.90 : 1,822,801.35 = 1,112,849.30 : x
  2. Step 2: Convert to fraction form
    1,215,200.90/1,822,801.35 = 1,112,849.30/x
  3. Step 3: Cross multiply
    1,215,200.90x = 1,822,801.35 × 1,112,849.30
  4. Step 4: Simplify right side
    1,215,200.90x = 2,028,503,206,386.56
  5. Step 5: Solve for x
    x = 2,028,503,206,386.56/1,215,200.90
  6. Step 6: Final answer
    x = 1,669,273.95

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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.