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Finding the Fourth Proportional to 574,863.70, 793,336.42 and 320,215

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Solution

The fourth proportional to 574,863.70, 793,336.42 and 320,215 is: 441,910.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,863.70 : 793,336.42 = 320,215 : x
  2. Step 2: Convert to fraction form
    574,863.70/793,336.42 = 320,215/x
  3. Step 3: Cross multiply
    574,863.70x = 793,336.42 × 320,215
  4. Step 4: Simplify right side
    574,863.70x = 254,038,221,730.30
  5. Step 5: Solve for x
    x = 254,038,221,730.30/574,863.70
  6. Step 6: Final answer
    x = 441,910.35

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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.