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Finding the Fourth Proportional to 559.80, 772.83 and 429.06

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Solution

The fourth proportional to 559.80, 772.83 and 429.06 is: 592.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.80 : 772.83 = 429.06 : x
  2. Step 2: Convert to fraction form
    559.80/772.83 = 429.06/x
  3. Step 3: Cross multiply
    559.80x = 772.83 × 429.06
  4. Step 4: Simplify right side
    559.80x = 331,590.44
  5. Step 5: Solve for x
    x = 331,590.44/559.80
  6. Step 6: Final answer
    x = 592.34

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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.