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Finding the Fourth Proportional to 408,044.15, 611,464.80 and 295,960.40

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Solution

The fourth proportional to 408,044.15, 611,464.80 and 295,960.40 is: 443,504.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,044.15 : 611,464.80 = 295,960.40 : x
  2. Step 2: Convert to fraction form
    408,044.15/611,464.80 = 295,960.40/x
  3. Step 3: Cross multiply
    408,044.15x = 611,464.80 × 295,960.40
  4. Step 4: Simplify right side
    408,044.15x = 180,969,366,793.92
  5. Step 5: Solve for x
    x = 180,969,366,793.92/408,044.15
  6. Step 6: Final answer
    x = 443,504.38

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1.5x scale

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.