Home / 500,864.78-691,192.07-271,428.46

Finding the Fourth Proportional to 500,864.78, 691,192.07 and 271,428.46

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Solution

The fourth proportional to 500,864.78, 691,192.07 and 271,428.46 is: 374,570.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,864.78 : 691,192.07 = 271,428.46 : x
  2. Step 2: Convert to fraction form
    500,864.78/691,192.07 = 271,428.46/x
  3. Step 3: Cross multiply
    500,864.78x = 691,192.07 × 271,428.46
  4. Step 4: Simplify right side
    500,864.78x = 187,609,199,124.31
  5. Step 5: Solve for x
    x = 187,609,199,124.31/500,864.78
  6. Step 6: Final answer
    x = 374,570.56

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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.