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Finding the Fourth Proportional to 493,959.78, 681,664.23 and 267,605.28

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Solution

The fourth proportional to 493,959.78, 681,664.23 and 267,605.28 is: 369,295.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,959.78 : 681,664.23 = 267,605.28 : x
  2. Step 2: Convert to fraction form
    493,959.78/681,664.23 = 267,605.28/x
  3. Step 3: Cross multiply
    493,959.78x = 681,664.23 × 267,605.28
  4. Step 4: Simplify right side
    493,959.78x = 182,416,947,135.13
  5. Step 5: Solve for x
    x = 182,416,947,135.13/493,959.78
  6. Step 6: Final answer
    x = 369,295.14

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1.5x scale

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.