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Finding the Fourth Proportional to 558,672.65, 770,876.36 and 351,908.91

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Solution

The fourth proportional to 558,672.65, 770,876.36 and 351,908.91 is: 485,576.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,672.65 : 770,876.36 = 351,908.91 : x
  2. Step 2: Convert to fraction form
    558,672.65/770,876.36 = 351,908.91/x
  3. Step 3: Cross multiply
    558,672.65x = 770,876.36 × 351,908.91
  4. Step 4: Simplify right side
    558,672.65x = 271,278,257,832.82
  5. Step 5: Solve for x
    x = 271,278,257,832.82/558,672.65
  6. Step 6: Final answer
    x = 485,576.41

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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.