Home / 789,891.11-1,090,046.45-427,314.12

Finding the Fourth Proportional to 789,891.11, 1,090,046.45 and 427,314.12

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Solution

The fourth proportional to 789,891.11, 1,090,046.45 and 427,314.12 is: 589,691.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,891.11 : 1,090,046.45 = 427,314.12 : x
  2. Step 2: Convert to fraction form
    789,891.11/1,090,046.45 = 427,314.12/x
  3. Step 3: Cross multiply
    789,891.11x = 1,090,046.45 × 427,314.12
  4. Step 4: Simplify right side
    789,891.11x = 465,792,237,404.30
  5. Step 5: Solve for x
    x = 465,792,237,404.30/789,891.11
  6. Step 6: Final answer
    x = 589,691.71

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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.