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Finding the Fourth Proportional to 574,600.28, 792,932.13 and 312,949.64

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Solution

The fourth proportional to 574,600.28, 792,932.13 and 312,949.64 is: 431,861.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,600.28 : 792,932.13 = 312,949.64 : x
  2. Step 2: Convert to fraction form
    574,600.28/792,932.13 = 312,949.64/x
  3. Step 3: Cross multiply
    574,600.28x = 792,932.13 × 312,949.64
  4. Step 4: Simplify right side
    574,600.28x = 248,147,824,627.93
  5. Step 5: Solve for x
    x = 248,147,824,627.93/574,600.28
  6. Step 6: Final answer
    x = 431,861.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.