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Finding the Fourth Proportional to 668,299.61, 1,002,216 and 268,836.77

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Solution

The fourth proportional to 668,299.61, 1,002,216 and 268,836.77 is: 403,161.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,299.61 : 1,002,216 = 268,836.77 : x
  2. Step 2: Convert to fraction form
    668,299.61/1,002,216 = 268,836.77/x
  3. Step 3: Cross multiply
    668,299.61x = 1,002,216 × 268,836.77
  4. Step 4: Simplify right side
    668,299.61x = 269,432,512,282.32
  5. Step 5: Solve for x
    x = 269,432,512,282.32/668,299.61
  6. Step 6: Final answer
    x = 403,161.26

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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.