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Finding the Fourth Proportional to 550,992.70, 825,468.45 and 313,630.30

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Solution

The fourth proportional to 550,992.70, 825,468.45 and 313,630.30 is: 469,864.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,992.70 : 825,468.45 = 313,630.30 : x
  2. Step 2: Convert to fraction form
    550,992.70/825,468.45 = 313,630.30/x
  3. Step 3: Cross multiply
    550,992.70x = 825,468.45 × 313,630.30
  4. Step 4: Simplify right side
    550,992.70x = 258,891,917,614.04
  5. Step 5: Solve for x
    x = 258,891,917,614.04/550,992.70
  6. Step 6: Final answer
    x = 469,864.51

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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.