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Finding the Fourth Proportional to 665,061.60, 996,936.30 and 327,826.20

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Solution

The fourth proportional to 665,061.60, 996,936.30 and 327,826.20 is: 491,415.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,061.60 : 996,936.30 = 327,826.20 : x
  2. Step 2: Convert to fraction form
    665,061.60/996,936.30 = 327,826.20/x
  3. Step 3: Cross multiply
    665,061.60x = 996,936.30 × 327,826.20
  4. Step 4: Simplify right side
    665,061.60x = 326,821,838,871.06
  5. Step 5: Solve for x
    x = 326,821,838,871.06/665,061.60
  6. Step 6: Final answer
    x = 491,415.89

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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.