Home / 501,243.56-691,717.02-274,890.68

Finding the Fourth Proportional to 501,243.56, 691,717.02 and 274,890.68

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Solution

The fourth proportional to 501,243.56, 691,717.02 and 274,890.68 is: 379,349.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,243.56 : 691,717.02 = 274,890.68 : x
  2. Step 2: Convert to fraction form
    501,243.56/691,717.02 = 274,890.68/x
  3. Step 3: Cross multiply
    501,243.56x = 691,717.02 × 274,890.68
  4. Step 4: Simplify right side
    501,243.56x = 190,146,561,995.37
  5. Step 5: Solve for x
    x = 190,146,561,995.37/501,243.56
  6. Step 6: Final answer
    x = 379,349.64

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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.