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Finding the Fourth Proportional to 486,004.60, 729,006.90 and 367,906.60

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Solution

The fourth proportional to 486,004.60, 729,006.90 and 367,906.60 is: 551,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,004.60 : 729,006.90 = 367,906.60 : x
  2. Step 2: Convert to fraction form
    486,004.60/729,006.90 = 367,906.60/x
  3. Step 3: Cross multiply
    486,004.60x = 729,006.90 × 367,906.60
  4. Step 4: Simplify right side
    486,004.60x = 268,206,449,955.54
  5. Step 5: Solve for x
    x = 268,206,449,955.54/486,004.60
  6. Step 6: Final answer
    x = 551,859.90

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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.