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Finding the Fourth Proportional to 500,850.61, 691,039.34 and 285,947.89

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Solution

The fourth proportional to 500,850.61, 691,039.34 and 285,947.89 is: 394,531.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,850.61 : 691,039.34 = 285,947.89 : x
  2. Step 2: Convert to fraction form
    500,850.61/691,039.34 = 285,947.89/x
  3. Step 3: Cross multiply
    500,850.61x = 691,039.34 × 285,947.89
  4. Step 4: Simplify right side
    500,850.61x = 197,601,241,179.99
  5. Step 5: Solve for x
    x = 197,601,241,179.99/500,850.61
  6. Step 6: Final answer
    x = 394,531.30

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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.