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Finding the Fourth Proportional to 558,648.14, 770,951.82 and 316,940.90

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Solution

The fourth proportional to 558,648.14, 770,951.82 and 316,940.90 is: 437,388.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,648.14 : 770,951.82 = 316,940.90 : x
  2. Step 2: Convert to fraction form
    558,648.14/770,951.82 = 316,940.90/x
  3. Step 3: Cross multiply
    558,648.14x = 770,951.82 × 316,940.90
  4. Step 4: Simplify right side
    558,648.14x = 244,346,163,687.44
  5. Step 5: Solve for x
    x = 244,346,163,687.44/558,648.14
  6. Step 6: Final answer
    x = 437,388.31

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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.