Home / 674,851.20-1,012,665.60-254,428.80

Finding the Fourth Proportional to 674,851.20, 1,012,665.60 and 254,428.80

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Solution

The fourth proportional to 674,851.20, 1,012,665.60 and 254,428.80 is: 381,789.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,851.20 : 1,012,665.60 = 254,428.80 : x
  2. Step 2: Convert to fraction form
    674,851.20/1,012,665.60 = 254,428.80/x
  3. Step 3: Cross multiply
    674,851.20x = 1,012,665.60 × 254,428.80
  4. Step 4: Simplify right side
    674,851.20x = 257,651,293,409.28
  5. Step 5: Solve for x
    x = 257,651,293,409.28/674,851.20
  6. Step 6: Final answer
    x = 381,789.78

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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.