Home / 855,465.80-1,280,433.90-789,110.60

Finding the Fourth Proportional to 855,465.80, 1,280,433.90 and 789,110.60

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Solution

The fourth proportional to 855,465.80, 1,280,433.90 and 789,110.60 is: 1,181,115.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,465.80 : 1,280,433.90 = 789,110.60 : x
  2. Step 2: Convert to fraction form
    855,465.80/1,280,433.90 = 789,110.60/x
  3. Step 3: Cross multiply
    855,465.80x = 1,280,433.90 × 789,110.60
  4. Step 4: Simplify right side
    855,465.80x = 1,010,403,963,089.34
  5. Step 5: Solve for x
    x = 1,010,403,963,089.34/855,465.80
  6. Step 6: Final answer
    x = 1,181,115.55

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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.