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Finding the Fourth Proportional to 500,044.50, 690,061.41 and 273,690

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Solution

The fourth proportional to 500,044.50, 690,061.41 and 273,690 is: 377,692.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,044.50 : 690,061.41 = 273,690 : x
  2. Step 2: Convert to fraction form
    500,044.50/690,061.41 = 273,690/x
  3. Step 3: Cross multiply
    500,044.50x = 690,061.41 × 273,690
  4. Step 4: Simplify right side
    500,044.50x = 188,862,907,302.90
  5. Step 5: Solve for x
    x = 188,862,907,302.90/500,044.50
  6. Step 6: Final answer
    x = 377,692.20

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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.