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Finding the Fourth Proportional to 664,164.09, 996,344.55 and 348,645.60

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Solution

The fourth proportional to 664,164.09, 996,344.55 and 348,645.60 is: 523,020.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,164.09 : 996,344.55 = 348,645.60 : x
  2. Step 2: Convert to fraction form
    664,164.09/996,344.55 = 348,645.60/x
  3. Step 3: Cross multiply
    664,164.09x = 996,344.55 × 348,645.60
  4. Step 4: Simplify right side
    664,164.09x = 347,371,143,441.48
  5. Step 5: Solve for x
    x = 347,371,143,441.48/664,164.09
  6. Step 6: Final answer
    x = 523,020.06

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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.