Home / 1,438,747.20-2,158,120.26-427,865.04

Finding the Fourth Proportional to 1,438,747.20, 2,158,120.26 and 427,865.04

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Solution

The fourth proportional to 1,438,747.20, 2,158,120.26 and 427,865.04 is: 641,797.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,747.20 : 2,158,120.26 = 427,865.04 : x
  2. Step 2: Convert to fraction form
    1,438,747.20/2,158,120.26 = 427,865.04/x
  3. Step 3: Cross multiply
    1,438,747.20x = 2,158,120.26 × 427,865.04
  4. Step 4: Simplify right side
    1,438,747.20x = 923,384,211,369.71
  5. Step 5: Solve for x
    x = 923,384,211,369.71/1,438,747.20
  6. Step 6: Final answer
    x = 641,797.40

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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.