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Finding the Fourth Proportional to 394,492.10, 591,738.15 and 364,079.30

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Solution

The fourth proportional to 394,492.10, 591,738.15 and 364,079.30 is: 546,118.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,492.10 : 591,738.15 = 364,079.30 : x
  2. Step 2: Convert to fraction form
    394,492.10/591,738.15 = 364,079.30/x
  3. Step 3: Cross multiply
    394,492.10x = 591,738.15 × 364,079.30
  4. Step 4: Simplify right side
    394,492.10x = 215,439,611,435.30
  5. Step 5: Solve for x
    x = 215,439,611,435.30/394,492.10
  6. Step 6: Final answer
    x = 546,118.95

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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.