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Finding the Fourth Proportional to 855,296, 1,282,352.64 and 615,557.12

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Solution

The fourth proportional to 855,296, 1,282,352.64 and 615,557.12 is: 922,910.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,296 : 1,282,352.64 = 615,557.12 : x
  2. Step 2: Convert to fraction form
    855,296/1,282,352.64 = 615,557.12/x
  3. Step 3: Cross multiply
    855,296x = 1,282,352.64 × 615,557.12
  4. Step 4: Simplify right side
    855,296x = 789,361,297,902.80
  5. Step 5: Solve for x
    x = 789,361,297,902.80/855,296
  6. Step 6: Final answer
    x = 922,910.08

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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.