Home / 814,082.13-1,221,181.65-215,037.45

Finding the Fourth Proportional to 814,082.13, 1,221,181.65 and 215,037.45

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Solution

The fourth proportional to 814,082.13, 1,221,181.65 and 215,037.45 is: 322,571.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,082.13 : 1,221,181.65 = 215,037.45 : x
  2. Step 2: Convert to fraction form
    814,082.13/1,221,181.65 = 215,037.45/x
  3. Step 3: Cross multiply
    814,082.13x = 1,221,181.65 × 215,037.45
  4. Step 4: Simplify right side
    814,082.13x = 262,599,788,002.79
  5. Step 5: Solve for x
    x = 262,599,788,002.79/814,082.13
  6. Step 6: Final answer
    x = 322,571.62

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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.