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Finding the Fourth Proportional to 624,380.67, 861,370.36 and 366,126.50

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Solution

The fourth proportional to 624,380.67, 861,370.36 and 366,126.50 is: 505,093.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,380.67 : 861,370.36 = 366,126.50 : x
  2. Step 2: Convert to fraction form
    624,380.67/861,370.36 = 366,126.50/x
  3. Step 3: Cross multiply
    624,380.67x = 861,370.36 × 366,126.50
  4. Step 4: Simplify right side
    624,380.67x = 315,370,513,279.91
  5. Step 5: Solve for x
    x = 315,370,513,279.91/624,380.67
  6. Step 6: Final answer
    x = 505,093.33

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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.