Home / 721,874.04-1,082,202.21-455,046.54

Finding the Fourth Proportional to 721,874.04, 1,082,202.21 and 455,046.54

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Solution

The fourth proportional to 721,874.04, 1,082,202.21 and 455,046.54 is: 682,186.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,874.04 : 1,082,202.21 = 455,046.54 : x
  2. Step 2: Convert to fraction form
    721,874.04/1,082,202.21 = 455,046.54/x
  3. Step 3: Cross multiply
    721,874.04x = 1,082,202.21 × 455,046.54
  4. Step 4: Simplify right side
    721,874.04x = 492,452,371,240.85
  5. Step 5: Solve for x
    x = 492,452,371,240.85/721,874.04
  6. Step 6: Final answer
    x = 682,186.01

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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.