Home / 814,070.36-1,221,164.33-215,023.73

Finding the Fourth Proportional to 814,070.36, 1,221,164.33 and 215,023.73

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Solution

The fourth proportional to 814,070.36, 1,221,164.33 and 215,023.73 is: 322,551.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,070.36 : 1,221,164.33 = 215,023.73 : x
  2. Step 2: Convert to fraction form
    814,070.36/1,221,164.33 = 215,023.73/x
  3. Step 3: Cross multiply
    814,070.36x = 1,221,164.33 × 215,023.73
  4. Step 4: Simplify right side
    814,070.36x = 262,579,309,179.55
  5. Step 5: Solve for x
    x = 262,579,309,179.55/814,070.36
  6. Step 6: Final answer
    x = 322,551.12

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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.