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Finding the Fourth Proportional to 648,515.70, 894,859.11 and 362,029.50

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Solution

The fourth proportional to 648,515.70, 894,859.11 and 362,029.50 is: 499,549.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,515.70 : 894,859.11 = 362,029.50 : x
  2. Step 2: Convert to fraction form
    648,515.70/894,859.11 = 362,029.50/x
  3. Step 3: Cross multiply
    648,515.70x = 894,859.11 × 362,029.50
  4. Step 4: Simplify right side
    648,515.70x = 323,965,396,163.75
  5. Step 5: Solve for x
    x = 323,965,396,163.75/648,515.70
  6. Step 6: Final answer
    x = 499,549.04

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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.