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Finding the Fourth Proportional to 664,165.59, 996,346.80 and 348,647.10

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Solution

The fourth proportional to 664,165.59, 996,346.80 and 348,647.10 is: 523,022.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,165.59 : 996,346.80 = 348,647.10 : x
  2. Step 2: Convert to fraction form
    664,165.59/996,346.80 = 348,647.10/x
  3. Step 3: Cross multiply
    664,165.59x = 996,346.80 × 348,647.10
  4. Step 4: Simplify right side
    664,165.59x = 347,373,422,414.28
  5. Step 5: Solve for x
    x = 347,373,422,414.28/664,165.59
  6. Step 6: Final answer
    x = 523,022.31

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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.