Home / 465,660.24-642,688.44-274,720.56

Finding the Fourth Proportional to 465,660.24, 642,688.44 and 274,720.56

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Solution

The fourth proportional to 465,660.24, 642,688.44 and 274,720.56 is: 379,159.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,660.24 : 642,688.44 = 274,720.56 : x
  2. Step 2: Convert to fraction form
    465,660.24/642,688.44 = 274,720.56/x
  3. Step 3: Cross multiply
    465,660.24x = 642,688.44 × 274,720.56
  4. Step 4: Simplify right side
    465,660.24x = 176,559,728,142.33
  5. Step 5: Solve for x
    x = 176,559,728,142.33/465,660.24
  6. Step 6: Final answer
    x = 379,159.98

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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.