Home / 513,451.82-769,002.42-313,331.60

Finding the Fourth Proportional to 513,451.82, 769,002.42 and 313,331.60

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Solution

The fourth proportional to 513,451.82, 769,002.42 and 313,331.60 is: 469,280.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,451.82 : 769,002.42 = 313,331.60 : x
  2. Step 2: Convert to fraction form
    513,451.82/769,002.42 = 313,331.60/x
  3. Step 3: Cross multiply
    513,451.82x = 769,002.42 × 313,331.60
  4. Step 4: Simplify right side
    513,451.82x = 240,952,758,662.47
  5. Step 5: Solve for x
    x = 240,952,758,662.47/513,451.82
  6. Step 6: Final answer
    x = 469,280.17

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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.