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Finding the Fourth Proportional to 519,956.03, 717,576.47 and 287,377.98

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Solution

The fourth proportional to 519,956.03, 717,576.47 and 287,377.98 is: 396,602.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,956.03 : 717,576.47 = 287,377.98 : x
  2. Step 2: Convert to fraction form
    519,956.03/717,576.47 = 287,377.98/x
  3. Step 3: Cross multiply
    519,956.03x = 717,576.47 × 287,377.98
  4. Step 4: Simplify right side
    519,956.03x = 206,215,675,007.24
  5. Step 5: Solve for x
    x = 206,215,675,007.24/519,956.03
  6. Step 6: Final answer
    x = 396,602.14

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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.