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Finding the Fourth Proportional to 667,561.84, 1,001,342.56 and 443,360

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Solution

The fourth proportional to 667,561.84, 1,001,342.56 and 443,360 is: 665,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,561.84 : 1,001,342.56 = 443,360 : x
  2. Step 2: Convert to fraction form
    667,561.84/1,001,342.56 = 443,360/x
  3. Step 3: Cross multiply
    667,561.84x = 1,001,342.56 × 443,360
  4. Step 4: Simplify right side
    667,561.84x = 443,955,237,401.60
  5. Step 5: Solve for x
    x = 443,955,237,401.60/667,561.84
  6. Step 6: Final answer
    x = 665,039.87

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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.