Home / 681,815.50-1,022,870.88-261,091.39

Finding the Fourth Proportional to 681,815.50, 1,022,870.88 and 261,091.39

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Solution

The fourth proportional to 681,815.50, 1,022,870.88 and 261,091.39 is: 391,693.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,815.50 : 1,022,870.88 = 261,091.39 : x
  2. Step 2: Convert to fraction form
    681,815.50/1,022,870.88 = 261,091.39/x
  3. Step 3: Cross multiply
    681,815.50x = 1,022,870.88 × 261,091.39
  4. Step 4: Simplify right side
    681,815.50x = 267,062,779,849.72
  5. Step 5: Solve for x
    x = 267,062,779,849.72/681,815.50
  6. Step 6: Final answer
    x = 391,693.62

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1.5x scale

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.