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Finding the Fourth Proportional to 664,457.70, 996,243.67 and 322,810.03

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Solution

The fourth proportional to 664,457.70, 996,243.67 and 322,810.03 is: 483,999.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,457.70 : 996,243.67 = 322,810.03 : x
  2. Step 2: Convert to fraction form
    664,457.70/996,243.67 = 322,810.03/x
  3. Step 3: Cross multiply
    664,457.70x = 996,243.67 × 322,810.03
  4. Step 4: Simplify right side
    664,457.70x = 321,597,449,000.01
  5. Step 5: Solve for x
    x = 321,597,449,000.01/664,457.70
  6. Step 6: Final answer
    x = 483,999.88

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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.