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Finding the Fourth Proportional to 539,019.20, 806,973.60 and 329,067.20

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Solution

The fourth proportional to 539,019.20, 806,973.60 and 329,067.20 is: 492,651.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,019.20 : 806,973.60 = 329,067.20 : x
  2. Step 2: Convert to fraction form
    539,019.20/806,973.60 = 329,067.20/x
  3. Step 3: Cross multiply
    539,019.20x = 806,973.60 × 329,067.20
  4. Step 4: Simplify right side
    539,019.20x = 265,548,543,025.92
  5. Step 5: Solve for x
    x = 265,548,543,025.92/539,019.20
  6. Step 6: Final answer
    x = 492,651.36

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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.