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Finding the Fourth Proportional to 374,630.30, 561,945.45 and 331,327.70

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Solution

The fourth proportional to 374,630.30, 561,945.45 and 331,327.70 is: 496,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,630.30 : 561,945.45 = 331,327.70 : x
  2. Step 2: Convert to fraction form
    374,630.30/561,945.45 = 331,327.70/x
  3. Step 3: Cross multiply
    374,630.30x = 561,945.45 × 331,327.70
  4. Step 4: Simplify right side
    374,630.30x = 186,188,093,473.97
  5. Step 5: Solve for x
    x = 186,188,093,473.97/374,630.30
  6. Step 6: Final answer
    x = 496,991.55

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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.