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Finding the Fourth Proportional to 444,839.40, 667,307.70 and 430,842.60

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Solution

The fourth proportional to 444,839.40, 667,307.70 and 430,842.60 is: 646,310.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,839.40 : 667,307.70 = 430,842.60 : x
  2. Step 2: Convert to fraction form
    444,839.40/667,307.70 = 430,842.60/x
  3. Step 3: Cross multiply
    444,839.40x = 667,307.70 × 430,842.60
  4. Step 4: Simplify right side
    444,839.40x = 287,504,584,468.02
  5. Step 5: Solve for x
    x = 287,504,584,468.02/444,839.40
  6. Step 6: Final answer
    x = 646,310.97

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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.