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Finding the Fourth Proportional to 501,040.80, 751,561.20 and 329,798.70

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Solution

The fourth proportional to 501,040.80, 751,561.20 and 329,798.70 is: 494,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,040.80 : 751,561.20 = 329,798.70 : x
  2. Step 2: Convert to fraction form
    501,040.80/751,561.20 = 329,798.70/x
  3. Step 3: Cross multiply
    501,040.80x = 751,561.20 × 329,798.70
  4. Step 4: Simplify right side
    501,040.80x = 247,863,906,730.44
  5. Step 5: Solve for x
    x = 247,863,906,730.44/501,040.80
  6. Step 6: Final answer
    x = 494,698.05

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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.