Home / 814,074.36-1,221,170.34-215,027.72

Finding the Fourth Proportional to 814,074.36, 1,221,170.34 and 215,027.72

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Solution

The fourth proportional to 814,074.36, 1,221,170.34 and 215,027.72 is: 322,557.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,074.36 : 1,221,170.34 = 215,027.72 : x
  2. Step 2: Convert to fraction form
    814,074.36/1,221,170.34 = 215,027.72/x
  3. Step 3: Cross multiply
    814,074.36x = 1,221,170.34 × 215,027.72
  4. Step 4: Simplify right side
    814,074.36x = 262,585,473,941.83
  5. Step 5: Solve for x
    x = 262,585,473,941.83/814,074.36
  6. Step 6: Final answer
    x = 322,557.11

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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.