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Finding the Fourth Proportional to 568,619.52, 851,077.52 and 418,800.80

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Solution

The fourth proportional to 568,619.52, 851,077.52 and 418,800.80 is: 626,837.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,619.52 : 851,077.52 = 418,800.80 : x
  2. Step 2: Convert to fraction form
    568,619.52/851,077.52 = 418,800.80/x
  3. Step 3: Cross multiply
    568,619.52x = 851,077.52 × 418,800.80
  4. Step 4: Simplify right side
    568,619.52x = 356,431,946,238.02
  5. Step 5: Solve for x
    x = 356,431,946,238.02/568,619.52
  6. Step 6: Final answer
    x = 626,837.34

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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.