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Finding the Fourth Proportional to 444,376.20, 666,564.30 and 284,943.90

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Solution

The fourth proportional to 444,376.20, 666,564.30 and 284,943.90 is: 427,415.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,376.20 : 666,564.30 = 284,943.90 : x
  2. Step 2: Convert to fraction form
    444,376.20/666,564.30 = 284,943.90/x
  3. Step 3: Cross multiply
    444,376.20x = 666,564.30 × 284,943.90
  4. Step 4: Simplify right side
    444,376.20x = 189,933,431,242.77
  5. Step 5: Solve for x
    x = 189,933,431,242.77/444,376.20
  6. Step 6: Final answer
    x = 427,415.85

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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.