Home / 814,510.80-1,221,766.20-341,146.80

Finding the Fourth Proportional to 814,510.80, 1,221,766.20 and 341,146.80

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Solution

The fourth proportional to 814,510.80, 1,221,766.20 and 341,146.80 is: 511,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,510.80 : 1,221,766.20 = 341,146.80 : x
  2. Step 2: Convert to fraction form
    814,510.80/1,221,766.20 = 341,146.80/x
  3. Step 3: Cross multiply
    814,510.80x = 1,221,766.20 × 341,146.80
  4. Step 4: Simplify right side
    814,510.80x = 416,801,629,478.16
  5. Step 5: Solve for x
    x = 416,801,629,478.16/814,510.80
  6. Step 6: Final answer
    x = 511,720.20

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Double scale
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Similar ratio
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1.5x scale

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.