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Finding the Fourth Proportional to 536,872.29, 803,556.06 and 394,679.91

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Solution

The fourth proportional to 536,872.29, 803,556.06 and 394,679.91 is: 590,731.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,872.29 : 803,556.06 = 394,679.91 : x
  2. Step 2: Convert to fraction form
    536,872.29/803,556.06 = 394,679.91/x
  3. Step 3: Cross multiply
    536,872.29x = 803,556.06 × 394,679.91
  4. Step 4: Simplify right side
    536,872.29x = 317,147,433,440.76
  5. Step 5: Solve for x
    x = 317,147,433,440.76/536,872.29
  6. Step 6: Final answer
    x = 590,731.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.