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Finding the Fourth Proportional to 447,694.40, 670,666.80 and 269,672.60

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Solution

The fourth proportional to 447,694.40, 670,666.80 and 269,672.60 is: 403,981.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,694.40 : 670,666.80 = 269,672.60 : x
  2. Step 2: Convert to fraction form
    447,694.40/670,666.80 = 269,672.60/x
  3. Step 3: Cross multiply
    447,694.40x = 670,666.80 × 269,672.60
  4. Step 4: Simplify right side
    447,694.40x = 180,860,459,689.68
  5. Step 5: Solve for x
    x = 180,860,459,689.68/447,694.40
  6. Step 6: Final answer
    x = 403,981.96

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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.