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Finding the Fourth Proportional to 503,757.73, 755,689.56 and 290,520.79

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Solution

The fourth proportional to 503,757.73, 755,689.56 and 290,520.79 is: 435,811.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,757.73 : 755,689.56 = 290,520.79 : x
  2. Step 2: Convert to fraction form
    503,757.73/755,689.56 = 290,520.79/x
  3. Step 3: Cross multiply
    503,757.73x = 755,689.56 × 290,520.79
  4. Step 4: Simplify right side
    503,757.73x = 219,543,527,965.95
  5. Step 5: Solve for x
    x = 219,543,527,965.95/503,757.73
  6. Step 6: Final answer
    x = 435,811.73

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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.