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Finding the Fourth Proportional to 548,729.70, 823,094.55 and 323,859.30

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Solution

The fourth proportional to 548,729.70, 823,094.55 and 323,859.30 is: 485,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,729.70 : 823,094.55 = 323,859.30 : x
  2. Step 2: Convert to fraction form
    548,729.70/823,094.55 = 323,859.30/x
  3. Step 3: Cross multiply
    548,729.70x = 823,094.55 × 323,859.30
  4. Step 4: Simplify right side
    548,729.70x = 266,566,824,796.82
  5. Step 5: Solve for x
    x = 266,566,824,796.82/548,729.70
  6. Step 6: Final answer
    x = 485,788.95

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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.