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Finding the Fourth Proportional to 605,329.79, 907,679.39 and 225,938.49

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Solution

The fourth proportional to 605,329.79, 907,679.39 and 225,938.49 is: 338,790.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,329.79 : 907,679.39 = 225,938.49 : x
  2. Step 2: Convert to fraction form
    605,329.79/907,679.39 = 225,938.49/x
  3. Step 3: Cross multiply
    605,329.79x = 907,679.39 × 225,938.49
  4. Step 4: Simplify right side
    605,329.79x = 205,079,709,651.03
  5. Step 5: Solve for x
    x = 205,079,709,651.03/605,329.79
  6. Step 6: Final answer
    x = 338,790.05

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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.