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Finding the Fourth Proportional to 512,490.31, 768,738.20 and 336,114.23

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Solution

The fourth proportional to 512,490.31, 768,738.20 and 336,114.23 is: 504,173.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,490.31 : 768,738.20 = 336,114.23 : x
  2. Step 2: Convert to fraction form
    512,490.31/768,738.20 = 336,114.23/x
  3. Step 3: Cross multiply
    512,490.31x = 768,738.20 × 336,114.23
  4. Step 4: Simplify right side
    512,490.31x = 258,383,842,640.32
  5. Step 5: Solve for x
    x = 258,383,842,640.32/512,490.31
  6. Step 6: Final answer
    x = 504,173.13

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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.