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Finding the Fourth Proportional to 609,203, 840,583.44 and 394,313.24

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Solution

The fourth proportional to 609,203, 840,583.44 and 394,313.24 is: 544,076.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,203 : 840,583.44 = 394,313.24 : x
  2. Step 2: Convert to fraction form
    609,203/840,583.44 = 394,313.24/x
  3. Step 3: Cross multiply
    609,203x = 840,583.44 × 394,313.24
  4. Step 4: Simplify right side
    609,203x = 331,453,179,716.75
  5. Step 5: Solve for x
    x = 331,453,179,716.75/609,203
  6. Step 6: Final answer
    x = 544,076.74

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1.5x scale

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.