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Finding the Fourth Proportional to 646,652.34, 969,978.69 and 197,375.67

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Solution

The fourth proportional to 646,652.34, 969,978.69 and 197,375.67 is: 296,063.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,652.34 : 969,978.69 = 197,375.67 : x
  2. Step 2: Convert to fraction form
    646,652.34/969,978.69 = 197,375.67/x
  3. Step 3: Cross multiply
    646,652.34x = 969,978.69 × 197,375.67
  4. Step 4: Simplify right side
    646,652.34x = 191,450,193,824.47
  5. Step 5: Solve for x
    x = 191,450,193,824.47/646,652.34
  6. Step 6: Final answer
    x = 296,063.56

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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.