Home / 494,043.78-681,782.88-267,689.28

Finding the Fourth Proportional to 494,043.78, 681,782.88 and 267,689.28

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Solution

The fourth proportional to 494,043.78, 681,782.88 and 267,689.28 is: 369,412.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,043.78 : 681,782.88 = 267,689.28 : x
  2. Step 2: Convert to fraction form
    494,043.78/681,782.88 = 267,689.28/x
  3. Step 3: Cross multiply
    494,043.78x = 681,782.88 × 267,689.28
  4. Step 4: Simplify right side
    494,043.78x = 182,505,968,263.53
  5. Step 5: Solve for x
    x = 182,505,968,263.53/494,043.78
  6. Step 6: Final answer
    x = 369,412.54

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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.