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Finding the Fourth Proportional to 769,997.18, 1,062,727.22 and 447,894

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Solution

The fourth proportional to 769,997.18, 1,062,727.22 and 447,894 is: 618,169.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,997.18 : 1,062,727.22 = 447,894 : x
  2. Step 2: Convert to fraction form
    769,997.18/1,062,727.22 = 447,894/x
  3. Step 3: Cross multiply
    769,997.18x = 1,062,727.22 × 447,894
  4. Step 4: Simplify right side
    769,997.18x = 475,989,146,594.42
  5. Step 5: Solve for x
    x = 475,989,146,594.42/769,997.18
  6. Step 6: Final answer
    x = 618,169.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.