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Finding the Fourth Proportional to 665,008.10, 996,856.05 and 327,772.70

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Solution

The fourth proportional to 665,008.10, 996,856.05 and 327,772.70 is: 491,335.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,008.10 : 996,856.05 = 327,772.70 : x
  2. Step 2: Convert to fraction form
    665,008.10/996,856.05 = 327,772.70/x
  3. Step 3: Cross multiply
    665,008.10x = 996,856.05 × 327,772.70
  4. Step 4: Simplify right side
    665,008.10x = 326,742,199,019.84
  5. Step 5: Solve for x
    x = 326,742,199,019.84/665,008.10
  6. Step 6: Final answer
    x = 491,335.67

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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.