Home / 501,020.88-691,407.36-274,666.56

Finding the Fourth Proportional to 501,020.88, 691,407.36 and 274,666.56

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Solution

The fourth proportional to 501,020.88, 691,407.36 and 274,666.56 is: 379,039.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,020.88 : 691,407.36 = 274,666.56 : x
  2. Step 2: Convert to fraction form
    501,020.88/691,407.36 = 274,666.56/x
  3. Step 3: Cross multiply
    501,020.88x = 691,407.36 × 274,666.56
  4. Step 4: Simplify right side
    501,020.88x = 189,906,481,129.88
  5. Step 5: Solve for x
    x = 189,906,481,129.88/501,020.88
  6. Step 6: Final answer
    x = 379,039.06

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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.