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Finding the Fourth Proportional to 404,638.80, 606,812.40 and 204,892.80

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Solution

The fourth proportional to 404,638.80, 606,812.40 and 204,892.80 is: 307,265.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,638.80 : 606,812.40 = 204,892.80 : x
  2. Step 2: Convert to fraction form
    404,638.80/606,812.40 = 204,892.80/x
  3. Step 3: Cross multiply
    404,638.80x = 606,812.40 × 204,892.80
  4. Step 4: Simplify right side
    404,638.80x = 124,331,491,710.72
  5. Step 5: Solve for x
    x = 124,331,491,710.72/404,638.80
  6. Step 6: Final answer
    x = 307,265.37

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1.5x scale

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.