Home / 815,098.97-1,222,255.19-341,657.21

Finding the Fourth Proportional to 815,098.97, 1,222,255.19 and 341,657.21

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Solution

The fourth proportional to 815,098.97, 1,222,255.19 and 341,657.21 is: 512,320.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,098.97 : 1,222,255.19 = 341,657.21 : x
  2. Step 2: Convert to fraction form
    815,098.97/1,222,255.19 = 341,657.21/x
  3. Step 3: Cross multiply
    815,098.97x = 1,222,255.19 × 341,657.21
  4. Step 4: Simplify right side
    815,098.97x = 417,592,292,866.29
  5. Step 5: Solve for x
    x = 417,592,292,866.29/815,098.97
  6. Step 6: Final answer
    x = 512,320.97

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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.