Home / 815,122.59-1,222,290.63-341,680.83

Finding the Fourth Proportional to 815,122.59, 1,222,290.63 and 341,680.83

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Solution

The fourth proportional to 815,122.59, 1,222,290.63 and 341,680.83 is: 512,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,122.59 : 1,222,290.63 = 341,680.83 : x
  2. Step 2: Convert to fraction form
    815,122.59/1,222,290.63 = 341,680.83/x
  3. Step 3: Cross multiply
    815,122.59x = 1,222,290.63 × 341,680.83
  4. Step 4: Simplify right side
    815,122.59x = 417,633,276,959.62
  5. Step 5: Solve for x
    x = 417,633,276,959.62/815,122.59
  6. Step 6: Final answer
    x = 512,356.40

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Double scale
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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.