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Finding the Fourth Proportional to 408,843.60, 613,265.40 and 302,555.40

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Solution

The fourth proportional to 408,843.60, 613,265.40 and 302,555.40 is: 453,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,843.60 : 613,265.40 = 302,555.40 : x
  2. Step 2: Convert to fraction form
    408,843.60/613,265.40 = 302,555.40/x
  3. Step 3: Cross multiply
    408,843.60x = 613,265.40 × 302,555.40
  4. Step 4: Simplify right side
    408,843.60x = 185,546,758,403.16
  5. Step 5: Solve for x
    x = 185,546,758,403.16/408,843.60
  6. Step 6: Final answer
    x = 453,833.10

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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.