Home / 814,235.92-1,221,364.27-215,191.90

Finding the Fourth Proportional to 814,235.92, 1,221,364.27 and 215,191.90

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Solution

The fourth proportional to 814,235.92, 1,221,364.27 and 215,191.90 is: 322,790.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,235.92 : 1,221,364.27 = 215,191.90 : x
  2. Step 2: Convert to fraction form
    814,235.92/1,221,364.27 = 215,191.90/x
  3. Step 3: Cross multiply
    814,235.92x = 1,221,364.27 × 215,191.90
  4. Step 4: Simplify right side
    814,235.92x = 262,827,696,214.02
  5. Step 5: Solve for x
    x = 262,827,696,214.02/814,235.92
  6. Step 6: Final answer
    x = 322,790.59

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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.