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Finding the Fourth Proportional to 519,034.38, 778,273.98 and 266,211.72

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Solution

The fourth proportional to 519,034.38, 778,273.98 and 266,211.72 is: 399,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,034.38 : 778,273.98 = 266,211.72 : x
  2. Step 2: Convert to fraction form
    519,034.38/778,273.98 = 266,211.72/x
  3. Step 3: Cross multiply
    519,034.38x = 778,273.98 × 266,211.72
  4. Step 4: Simplify right side
    519,034.38x = 207,185,654,847.05
  5. Step 5: Solve for x
    x = 207,185,654,847.05/519,034.38
  6. Step 6: Final answer
    x = 399,175.20

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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.