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Finding the Fourth Proportional to 663,252.40, 994,295.40 and 397,118.80

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Solution

The fourth proportional to 663,252.40, 994,295.40 and 397,118.80 is: 595,329.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,252.40 : 994,295.40 = 397,118.80 : x
  2. Step 2: Convert to fraction form
    663,252.40/994,295.40 = 397,118.80/x
  3. Step 3: Cross multiply
    663,252.40x = 994,295.40 × 397,118.80
  4. Step 4: Simplify right side
    663,252.40x = 394,853,396,093.52
  5. Step 5: Solve for x
    x = 394,853,396,093.52/663,252.40
  6. Step 6: Final answer
    x = 595,329.01

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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.