Home / 814,775.76-1,222,210.33-215,721.36

Finding the Fourth Proportional to 814,775.76, 1,222,210.33 and 215,721.36

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Solution

The fourth proportional to 814,775.76, 1,222,210.33 and 215,721.36 is: 323,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,775.76 : 1,222,210.33 = 215,721.36 : x
  2. Step 2: Convert to fraction form
    814,775.76/1,222,210.33 = 215,721.36/x
  3. Step 3: Cross multiply
    814,775.76x = 1,222,210.33 × 215,721.36
  4. Step 4: Simplify right side
    814,775.76x = 263,656,874,593.65
  5. Step 5: Solve for x
    x = 263,656,874,593.65/814,775.76
  6. Step 6: Final answer
    x = 323,594.40

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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.