Home / 838,280-1,257,538.26-269,470.46

Finding the Fourth Proportional to 838,280, 1,257,538.26 and 269,470.46

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Solution

The fourth proportional to 838,280, 1,257,538.26 and 269,470.46 is: 404,243.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,280 : 1,257,538.26 = 269,470.46 : x
  2. Step 2: Convert to fraction form
    838,280/1,257,538.26 = 269,470.46/x
  3. Step 3: Cross multiply
    838,280x = 1,257,538.26 × 269,470.46
  4. Step 4: Simplify right side
    838,280x = 338,869,413,389.80
  5. Step 5: Solve for x
    x = 338,869,413,389.80/838,280
  6. Step 6: Final answer
    x = 404,243.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.