Home / 921,960.60-1,269,410.38-783,867.96

Finding the Fourth Proportional to 921,960.60, 1,269,410.38 and 783,867.96

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Solution

The fourth proportional to 921,960.60, 1,269,410.38 and 783,867.96 is: 1,079,276.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,960.60 : 1,269,410.38 = 783,867.96 : x
  2. Step 2: Convert to fraction form
    921,960.60/1,269,410.38 = 783,867.96/x
  3. Step 3: Cross multiply
    921,960.60x = 1,269,410.38 × 783,867.96
  4. Step 4: Simplify right side
    921,960.60x = 995,050,124,973.43
  5. Step 5: Solve for x
    x = 995,050,124,973.43/921,960.60
  6. Step 6: Final answer
    x = 1,079,276.19

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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.