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Finding the Fourth Proportional to 404,666.60, 606,999.90 and 329,871.20

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Solution

The fourth proportional to 404,666.60, 606,999.90 and 329,871.20 is: 494,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,666.60 : 606,999.90 = 329,871.20 : x
  2. Step 2: Convert to fraction form
    404,666.60/606,999.90 = 329,871.20/x
  3. Step 3: Cross multiply
    404,666.60x = 606,999.90 × 329,871.20
  4. Step 4: Simplify right side
    404,666.60x = 200,231,785,412.88
  5. Step 5: Solve for x
    x = 200,231,785,412.88/404,666.60
  6. Step 6: Final answer
    x = 494,806.80

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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.