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Finding the Fourth Proportional to 493,759.72, 681,387.78 and 267,406.12

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Solution

The fourth proportional to 493,759.72, 681,387.78 and 267,406.12 is: 369,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,759.72 : 681,387.78 = 267,406.12 : x
  2. Step 2: Convert to fraction form
    493,759.72/681,387.78 = 267,406.12/x
  3. Step 3: Cross multiply
    493,759.72x = 681,387.78 × 267,406.12
  4. Step 4: Simplify right side
    493,759.72x = 182,207,262,465.21
  5. Step 5: Solve for x
    x = 182,207,262,465.21/493,759.72
  6. Step 6: Final answer
    x = 369,020.10

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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.