Home / 721,839.63-1,082,150.55-455,012.04

Finding the Fourth Proportional to 721,839.63, 1,082,150.55 and 455,012.04

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Solution

The fourth proportional to 721,839.63, 1,082,150.55 and 455,012.04 is: 682,134.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,839.63 : 1,082,150.55 = 455,012.04 : x
  2. Step 2: Convert to fraction form
    721,839.63/1,082,150.55 = 455,012.04/x
  3. Step 3: Cross multiply
    721,839.63x = 1,082,150.55 × 455,012.04
  4. Step 4: Simplify right side
    721,839.63x = 492,391,529,342.62
  5. Step 5: Solve for x
    x = 492,391,529,342.62/721,839.63
  6. Step 6: Final answer
    x = 682,134.24

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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.