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Finding the Fourth Proportional to 664,009.80, 996,144.30 and 284,929.80

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Solution

The fourth proportional to 664,009.80, 996,144.30 and 284,929.80 is: 427,450.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,009.80 : 996,144.30 = 284,929.80 : x
  2. Step 2: Convert to fraction form
    664,009.80/996,144.30 = 284,929.80/x
  3. Step 3: Cross multiply
    664,009.80x = 996,144.30 × 284,929.80
  4. Step 4: Simplify right side
    664,009.80x = 283,831,196,170.14
  5. Step 5: Solve for x
    x = 283,831,196,170.14/664,009.80
  6. Step 6: Final answer
    x = 427,450.31

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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.