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Finding the Fourth Proportional to 808,964.96, 1,212,929.04 and 335,976.80

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Solution

The fourth proportional to 808,964.96, 1,212,929.04 and 335,976.80 is: 503,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,964.96 : 1,212,929.04 = 335,976.80 : x
  2. Step 2: Convert to fraction form
    808,964.96/1,212,929.04 = 335,976.80/x
  3. Step 3: Cross multiply
    808,964.96x = 1,212,929.04 × 335,976.80
  4. Step 4: Simplify right side
    808,964.96x = 407,516,017,486.27
  5. Step 5: Solve for x
    x = 407,516,017,486.27/808,964.96
  6. Step 6: Final answer
    x = 503,749.90

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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.