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Finding the Fourth Proportional to 827,253.20, 1,240,879.80 and 295,374.80

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Solution

The fourth proportional to 827,253.20, 1,240,879.80 and 295,374.80 is: 443,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,253.20 : 1,240,879.80 = 295,374.80 : x
  2. Step 2: Convert to fraction form
    827,253.20/1,240,879.80 = 295,374.80/x
  3. Step 3: Cross multiply
    827,253.20x = 1,240,879.80 × 295,374.80
  4. Step 4: Simplify right side
    827,253.20x = 366,524,622,749.04
  5. Step 5: Solve for x
    x = 366,524,622,749.04/827,253.20
  6. Step 6: Final answer
    x = 443,062.20

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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.