Home / 789,888.11-1,090,042.31-427,311.11

Finding the Fourth Proportional to 789,888.11, 1,090,042.31 and 427,311.11

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Solution

The fourth proportional to 789,888.11, 1,090,042.31 and 427,311.11 is: 589,687.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,888.11 : 1,090,042.31 = 427,311.11 : x
  2. Step 2: Convert to fraction form
    789,888.11/1,090,042.31 = 427,311.11/x
  3. Step 3: Cross multiply
    789,888.11x = 1,090,042.31 × 427,311.11
  4. Step 4: Simplify right side
    789,888.11x = 465,787,193,226.45
  5. Step 5: Solve for x
    x = 465,787,193,226.45/789,888.11
  6. Step 6: Final answer
    x = 589,687.56

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Double scale
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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.