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Finding the Fourth Proportional to 394,742.70, 592,114.05 and 368,304.30

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Solution

The fourth proportional to 394,742.70, 592,114.05 and 368,304.30 is: 552,456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,742.70 : 592,114.05 = 368,304.30 : x
  2. Step 2: Convert to fraction form
    394,742.70/592,114.05 = 368,304.30/x
  3. Step 3: Cross multiply
    394,742.70x = 592,114.05 × 368,304.30
  4. Step 4: Simplify right side
    394,742.70x = 218,078,150,705.42
  5. Step 5: Solve for x
    x = 218,078,150,705.42/394,742.70
  6. Step 6: Final answer
    x = 552,456.45

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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.