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Finding the Fourth Proportional to 551,446.61, 826,815.89 and 214,127.83

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Solution

The fourth proportional to 551,446.61, 826,815.89 and 214,127.83 is: 321,054.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,446.61 : 826,815.89 = 214,127.83 : x
  2. Step 2: Convert to fraction form
    551,446.61/826,815.89 = 214,127.83/x
  3. Step 3: Cross multiply
    551,446.61x = 826,815.89 × 214,127.83
  4. Step 4: Simplify right side
    551,446.61x = 177,044,287,914.92
  5. Step 5: Solve for x
    x = 177,044,287,914.92/551,446.61
  6. Step 6: Final answer
    x = 321,054.27

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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.