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Finding the Fourth Proportional to 501,037.78, 691,475.66 and 274,727.02

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Solution

The fourth proportional to 501,037.78, 691,475.66 and 274,727.02 is: 379,147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,037.78 : 691,475.66 = 274,727.02 : x
  2. Step 2: Convert to fraction form
    501,037.78/691,475.66 = 274,727.02/x
  3. Step 3: Cross multiply
    501,037.78x = 691,475.66 × 274,727.02
  4. Step 4: Simplify right side
    501,037.78x = 189,967,047,474.33
  5. Step 5: Solve for x
    x = 189,967,047,474.33/501,037.78
  6. Step 6: Final answer
    x = 379,147.15

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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.