Home / 814,917.30-1,221,627.54-282,065.68

Finding the Fourth Proportional to 814,917.30, 1,221,627.54 and 282,065.68

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Solution

The fourth proportional to 814,917.30, 1,221,627.54 and 282,065.68 is: 422,839.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,917.30 : 1,221,627.54 = 282,065.68 : x
  2. Step 2: Convert to fraction form
    814,917.30/1,221,627.54 = 282,065.68/x
  3. Step 3: Cross multiply
    814,917.30x = 1,221,627.54 × 282,065.68
  4. Step 4: Simplify right side
    814,917.30x = 344,579,202,776.83
  5. Step 5: Solve for x
    x = 344,579,202,776.83/814,917.30
  6. Step 6: Final answer
    x = 422,839.47

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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.