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Finding the Fourth Proportional to 400,866.89, 600,865.56 and 200,704.55

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Solution

The fourth proportional to 400,866.89, 600,865.56 and 200,704.55 is: 300,839.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,866.89 : 600,865.56 = 200,704.55 : x
  2. Step 2: Convert to fraction form
    400,866.89/600,865.56 = 200,704.55/x
  3. Step 3: Cross multiply
    400,866.89x = 600,865.56 × 200,704.55
  4. Step 4: Simplify right side
    400,866.89x = 120,596,448,825.97
  5. Step 5: Solve for x
    x = 120,596,448,825.97/400,866.89
  6. Step 6: Final answer
    x = 300,839.14

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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.