Home / 642,023.20-963,034.80-327,095.20

Finding the Fourth Proportional to 642,023.20, 963,034.80 and 327,095.20

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Solution

The fourth proportional to 642,023.20, 963,034.80 and 327,095.20 is: 490,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,023.20 : 963,034.80 = 327,095.20 : x
  2. Step 2: Convert to fraction form
    642,023.20/963,034.80 = 327,095.20/x
  3. Step 3: Cross multiply
    642,023.20x = 963,034.80 × 327,095.20
  4. Step 4: Simplify right side
    642,023.20x = 315,004,060,512.96
  5. Step 5: Solve for x
    x = 315,004,060,512.96/642,023.20
  6. Step 6: Final answer
    x = 490,642.80

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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.