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Finding the Fourth Proportional to 500,797.71, 691,098.42 and 274,443.21

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Solution

The fourth proportional to 500,797.71, 691,098.42 and 274,443.21 is: 378,730.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,797.71 : 691,098.42 = 274,443.21 : x
  2. Step 2: Convert to fraction form
    500,797.71/691,098.42 = 274,443.21/x
  3. Step 3: Cross multiply
    500,797.71x = 691,098.42 × 274,443.21
  4. Step 4: Simplify right side
    500,797.71x = 189,667,268,810.73
  5. Step 5: Solve for x
    x = 189,667,268,810.73/500,797.71
  6. Step 6: Final answer
    x = 378,730.30

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1.5x scale

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.