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Finding the Fourth Proportional to 928,862, 1,393,234.06 and 329,744.28

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Solution

The fourth proportional to 928,862, 1,393,234.06 and 329,744.28 is: 494,595.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,862 : 1,393,234.06 = 329,744.28 : x
  2. Step 2: Convert to fraction form
    928,862/1,393,234.06 = 329,744.28/x
  3. Step 3: Cross multiply
    928,862x = 1,393,234.06 × 329,744.28
  4. Step 4: Simplify right side
    928,862x = 459,410,961,986.18
  5. Step 5: Solve for x
    x = 459,410,961,986.18/928,862
  6. Step 6: Final answer
    x = 494,595.50

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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.