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Finding the Fourth Proportional to 565,388.75, 779,976.37 and 347,399.53

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Solution

The fourth proportional to 565,388.75, 779,976.37 and 347,399.53 is: 479,251.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,388.75 : 779,976.37 = 347,399.53 : x
  2. Step 2: Convert to fraction form
    565,388.75/779,976.37 = 347,399.53/x
  3. Step 3: Cross multiply
    565,388.75x = 779,976.37 × 347,399.53
  4. Step 4: Simplify right side
    565,388.75x = 270,963,422,833.42
  5. Step 5: Solve for x
    x = 270,963,422,833.42/565,388.75
  6. Step 6: Final answer
    x = 479,251.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.