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Finding the Fourth Proportional to 650,872.65, 898,179.30 and 356,517.64

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Solution

The fourth proportional to 650,872.65, 898,179.30 and 356,517.64 is: 491,980.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,872.65 : 898,179.30 = 356,517.64 : x
  2. Step 2: Convert to fraction form
    650,872.65/898,179.30 = 356,517.64/x
  3. Step 3: Cross multiply
    650,872.65x = 898,179.30 × 356,517.64
  4. Step 4: Simplify right side
    650,872.65x = 320,216,764,332.85
  5. Step 5: Solve for x
    x = 320,216,764,332.85/650,872.65
  6. Step 6: Final answer
    x = 491,980.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.