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Finding the Fourth Proportional to 606,943.20, 911,451.60 and 327,007.20

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Solution

The fourth proportional to 606,943.20, 911,451.60 and 327,007.20 is: 491,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,943.20 : 911,451.60 = 327,007.20 : x
  2. Step 2: Convert to fraction form
    606,943.20/911,451.60 = 327,007.20/x
  3. Step 3: Cross multiply
    606,943.20x = 911,451.60 × 327,007.20
  4. Step 4: Simplify right side
    606,943.20x = 298,051,235,651.52
  5. Step 5: Solve for x
    x = 298,051,235,651.52/606,943.20
  6. Step 6: Final answer
    x = 491,069.40

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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.