Home / 448,721.10-619,122.99-274,246.71

Finding the Fourth Proportional to 448,721.10, 619,122.99 and 274,246.71

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Solution

The fourth proportional to 448,721.10, 619,122.99 and 274,246.71 is: 378,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,721.10 : 619,122.99 = 274,246.71 : x
  2. Step 2: Convert to fraction form
    448,721.10/619,122.99 = 274,246.71/x
  3. Step 3: Cross multiply
    448,721.10x = 619,122.99 × 274,246.71
  4. Step 4: Simplify right side
    448,721.10x = 169,792,443,092.86
  5. Step 5: Solve for x
    x = 169,792,443,092.86/448,721.10
  6. Step 6: Final answer
    x = 378,391.93

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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.