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Finding the Fourth Proportional to 505,008.35, 757,513.38 and 404,446

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Solution

The fourth proportional to 505,008.35, 757,513.38 and 404,446 is: 606,669.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,008.35 : 757,513.38 = 404,446 : x
  2. Step 2: Convert to fraction form
    505,008.35/757,513.38 = 404,446/x
  3. Step 3: Cross multiply
    505,008.35x = 757,513.38 × 404,446
  4. Step 4: Simplify right side
    505,008.35x = 306,373,256,487.48
  5. Step 5: Solve for x
    x = 306,373,256,487.48/505,008.35
  6. Step 6: Final answer
    x = 606,669.68

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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.