Home / 814,909.35-1,221,615.66-282,057.72

Finding the Fourth Proportional to 814,909.35, 1,221,615.66 and 282,057.72

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Solution

The fourth proportional to 814,909.35, 1,221,615.66 and 282,057.72 is: 422,827.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,909.35 : 1,221,615.66 = 282,057.72 : x
  2. Step 2: Convert to fraction form
    814,909.35/1,221,615.66 = 282,057.72/x
  3. Step 3: Cross multiply
    814,909.35x = 1,221,615.66 × 282,057.72
  4. Step 4: Simplify right side
    814,909.35x = 344,566,127,775.90
  5. Step 5: Solve for x
    x = 344,566,127,775.90/814,909.35
  6. Step 6: Final answer
    x = 422,827.55

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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.