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Finding the Fourth Proportional to 682,456, 941,786.63 and 376,551.42

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Solution

The fourth proportional to 682,456, 941,786.63 and 376,551.42 is: 519,639.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,456 : 941,786.63 = 376,551.42 : x
  2. Step 2: Convert to fraction form
    682,456/941,786.63 = 376,551.42/x
  3. Step 3: Cross multiply
    682,456x = 941,786.63 × 376,551.42
  4. Step 4: Simplify right side
    682,456x = 354,631,092,863.52
  5. Step 5: Solve for x
    x = 354,631,092,863.52/682,456
  6. Step 6: Final answer
    x = 519,639.50

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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.