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Finding the Fourth Proportional to 408,044.40, 612,066.60 and 404,107.80

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Solution

The fourth proportional to 408,044.40, 612,066.60 and 404,107.80 is: 606,161.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,044.40 : 612,066.60 = 404,107.80 : x
  2. Step 2: Convert to fraction form
    408,044.40/612,066.60 = 404,107.80/x
  3. Step 3: Cross multiply
    408,044.40x = 612,066.60 × 404,107.80
  4. Step 4: Simplify right side
    408,044.40x = 247,340,887,179.48
  5. Step 5: Solve for x
    x = 247,340,887,179.48/408,044.40
  6. Step 6: Final answer
    x = 606,161.70

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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.