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Finding the Fourth Proportional to 664,346.80, 996,649.80 and 285,266.80

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Solution

The fourth proportional to 664,346.80, 996,649.80 and 285,266.80 is: 427,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,346.80 : 996,649.80 = 285,266.80 : x
  2. Step 2: Convert to fraction form
    664,346.80/996,649.80 = 285,266.80/x
  3. Step 3: Cross multiply
    664,346.80x = 996,649.80 × 285,266.80
  4. Step 4: Simplify right side
    664,346.80x = 284,311,099,166.64
  5. Step 5: Solve for x
    x = 284,311,099,166.64/664,346.80
  6. Step 6: Final answer
    x = 427,955.85

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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.