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Finding the Fourth Proportional to 493,986, 681,701.32 and 267,631.48

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Solution

The fourth proportional to 493,986, 681,701.32 and 267,631.48 is: 369,331.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,986 : 681,701.32 = 267,631.48 : x
  2. Step 2: Convert to fraction form
    493,986/681,701.32 = 267,631.48/x
  3. Step 3: Cross multiply
    493,986x = 681,701.32 × 267,631.48
  4. Step 4: Simplify right side
    493,986x = 182,444,733,189.55
  5. Step 5: Solve for x
    x = 182,444,733,189.55/493,986
  6. Step 6: Final answer
    x = 369,331.79

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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.