Home / 721,435.11-1,082,141.72-248,124.57

Finding the Fourth Proportional to 721,435.11, 1,082,141.72 and 248,124.57

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Solution

The fourth proportional to 721,435.11, 1,082,141.72 and 248,124.57 is: 372,183.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,435.11 : 1,082,141.72 = 248,124.57 : x
  2. Step 2: Convert to fraction form
    721,435.11/1,082,141.72 = 248,124.57/x
  3. Step 3: Cross multiply
    721,435.11x = 1,082,141.72 × 248,124.57
  4. Step 4: Simplify right side
    721,435.11x = 268,505,948,954.06
  5. Step 5: Solve for x
    x = 268,505,948,954.06/721,435.11
  6. Step 6: Final answer
    x = 372,183.09

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1.5x scale

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.