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Finding the Fourth Proportional to 693,640.40, 1,040,201.40 and 482,651.60

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Solution

The fourth proportional to 693,640.40, 1,040,201.40 and 482,651.60 is: 723,797.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,640.40 : 1,040,201.40 = 482,651.60 : x
  2. Step 2: Convert to fraction form
    693,640.40/1,040,201.40 = 482,651.60/x
  3. Step 3: Cross multiply
    693,640.40x = 1,040,201.40 × 482,651.60
  4. Step 4: Simplify right side
    693,640.40x = 502,054,870,032.24
  5. Step 5: Solve for x
    x = 502,054,870,032.24/693,640.40
  6. Step 6: Final answer
    x = 723,797.04

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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.