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Finding the Fourth Proportional to 571,906.78, 857,302.23 and 272,306.86

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Solution

The fourth proportional to 571,906.78, 857,302.23 and 272,306.86 is: 408,194.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,906.78 : 857,302.23 = 272,306.86 : x
  2. Step 2: Convert to fraction form
    571,906.78/857,302.23 = 272,306.86/x
  3. Step 3: Cross multiply
    571,906.78x = 857,302.23 × 272,306.86
  4. Step 4: Simplify right side
    571,906.78x = 233,449,278,322.30
  5. Step 5: Solve for x
    x = 233,449,278,322.30/571,906.78
  6. Step 6: Final answer
    x = 408,194.63

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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.