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Finding the Fourth Proportional to 501,001.26, 691,425.48 and 274,690.50

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Solution

The fourth proportional to 501,001.26, 691,425.48 and 274,690.50 is: 379,096.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,001.26 : 691,425.48 = 274,690.50 : x
  2. Step 2: Convert to fraction form
    501,001.26/691,425.48 = 274,690.50/x
  3. Step 3: Cross multiply
    501,001.26x = 691,425.48 × 274,690.50
  4. Step 4: Simplify right side
    501,001.26x = 189,928,010,813.94
  5. Step 5: Solve for x
    x = 189,928,010,813.94/501,001.26
  6. Step 6: Final answer
    x = 379,096.87

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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.