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Finding the Fourth Proportional to 500,799.92, 691,121.58 and 274,445.44

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Solution

The fourth proportional to 500,799.92, 691,121.58 and 274,445.44 is: 378,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,799.92 : 691,121.58 = 274,445.44 : x
  2. Step 2: Convert to fraction form
    500,799.92/691,121.58 = 274,445.44/x
  3. Step 3: Cross multiply
    500,799.92x = 691,121.58 × 274,445.44
  4. Step 4: Simplify right side
    500,799.92x = 189,675,166,116.60
  5. Step 5: Solve for x
    x = 189,675,166,116.60/500,799.92
  6. Step 6: Final answer
    x = 378,744.40

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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.