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Finding the Fourth Proportional to 463,325, 639,384.18 and 262,121

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Solution

The fourth proportional to 463,325, 639,384.18 and 262,121 is: 361,724.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,325 : 639,384.18 = 262,121 : x
  2. Step 2: Convert to fraction form
    463,325/639,384.18 = 262,121/x
  3. Step 3: Cross multiply
    463,325x = 639,384.18 × 262,121
  4. Step 4: Simplify right side
    463,325x = 167,596,020,645.78
  5. Step 5: Solve for x
    x = 167,596,020,645.78/463,325
  6. Step 6: Final answer
    x = 361,724.54

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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.