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Finding the Fourth Proportional to 323,703.34, 446,902.20 and 287,794

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Solution

The fourth proportional to 323,703.34, 446,902.20 and 287,794 is: 397,326.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,703.34 : 446,902.20 = 287,794 : x
  2. Step 2: Convert to fraction form
    323,703.34/446,902.20 = 287,794/x
  3. Step 3: Cross multiply
    323,703.34x = 446,902.20 × 287,794
  4. Step 4: Simplify right side
    323,703.34x = 128,615,771,746.80
  5. Step 5: Solve for x
    x = 128,615,771,746.80/323,703.34
  6. Step 6: Final answer
    x = 397,326.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.