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Finding the Fourth Proportional to 664,286.40, 996,526.80 and 348,767.10

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Solution

The fourth proportional to 664,286.40, 996,526.80 and 348,767.10 is: 523,201.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,286.40 : 996,526.80 = 348,767.10 : x
  2. Step 2: Convert to fraction form
    664,286.40/996,526.80 = 348,767.10/x
  3. Step 3: Cross multiply
    664,286.40x = 996,526.80 × 348,767.10
  4. Step 4: Simplify right side
    664,286.40x = 347,555,762,108.28
  5. Step 5: Solve for x
    x = 347,555,762,108.28/664,286.40
  6. Step 6: Final answer
    x = 523,201.68

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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.