Home / 815,009.55-1,222,514.33-647,047.95

Finding the Fourth Proportional to 815,009.55, 1,222,514.33 and 647,047.95

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Solution

The fourth proportional to 815,009.55, 1,222,514.33 and 647,047.95 is: 970,571.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,009.55 : 1,222,514.33 = 647,047.95 : x
  2. Step 2: Convert to fraction form
    815,009.55/1,222,514.33 = 647,047.95/x
  3. Step 3: Cross multiply
    815,009.55x = 1,222,514.33 × 647,047.95
  4. Step 4: Simplify right side
    815,009.55x = 791,025,387,836.88
  5. Step 5: Solve for x
    x = 791,025,387,836.88/815,009.55
  6. Step 6: Final answer
    x = 970,571.93

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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.