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Finding the Fourth Proportional to 868,277, 1,198,225.95 and 505,949.42

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Solution

The fourth proportional to 868,277, 1,198,225.95 and 505,949.42 is: 698,212.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,277 : 1,198,225.95 = 505,949.42 : x
  2. Step 2: Convert to fraction form
    868,277/1,198,225.95 = 505,949.42/x
  3. Step 3: Cross multiply
    868,277x = 1,198,225.95 × 505,949.42
  4. Step 4: Simplify right side
    868,277x = 606,241,724,431.45
  5. Step 5: Solve for x
    x = 606,241,724,431.45/868,277
  6. Step 6: Final answer
    x = 698,212.35

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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.