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Finding the Fourth Proportional to 394,743.70, 592,115.55 and 368,305.30

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Solution

The fourth proportional to 394,743.70, 592,115.55 and 368,305.30 is: 552,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,743.70 : 592,115.55 = 368,305.30 : x
  2. Step 2: Convert to fraction form
    394,743.70/592,115.55 = 368,305.30/x
  3. Step 3: Cross multiply
    394,743.70x = 592,115.55 × 368,305.30
  4. Step 4: Simplify right side
    394,743.70x = 218,079,295,277.42
  5. Step 5: Solve for x
    x = 218,079,295,277.42/394,743.70
  6. Step 6: Final answer
    x = 552,457.95

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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.