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Finding the Fourth Proportional to 500,819.36, 691,132.72 and 271,377.12

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Solution

The fourth proportional to 500,819.36, 691,132.72 and 271,377.12 is: 374,501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,819.36 : 691,132.72 = 271,377.12 : x
  2. Step 2: Convert to fraction form
    500,819.36/691,132.72 = 271,377.12/x
  3. Step 3: Cross multiply
    500,819.36x = 691,132.72 × 271,377.12
  4. Step 4: Simplify right side
    500,819.36x = 187,557,607,091.37
  5. Step 5: Solve for x
    x = 187,557,607,091.37/500,819.36
  6. Step 6: Final answer
    x = 374,501.51

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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.