Home / 724,912.87-1,086,952.59-298,742.90

Finding the Fourth Proportional to 724,912.87, 1,086,952.59 and 298,742.90

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Solution

The fourth proportional to 724,912.87, 1,086,952.59 and 298,742.90 is: 447,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,912.87 : 1,086,952.59 = 298,742.90 : x
  2. Step 2: Convert to fraction form
    724,912.87/1,086,952.59 = 298,742.90/x
  3. Step 3: Cross multiply
    724,912.87x = 1,086,952.59 × 298,742.90
  4. Step 4: Simplify right side
    724,912.87x = 324,719,368,899.11
  5. Step 5: Solve for x
    x = 324,719,368,899.11/724,912.87
  6. Step 6: Final answer
    x = 447,942.62

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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.