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Finding the Fourth Proportional to 590.68, 815.52 and 425.44

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Solution

The fourth proportional to 590.68, 815.52 and 425.44 is: 587.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.68 : 815.52 = 425.44 : x
  2. Step 2: Convert to fraction form
    590.68/815.52 = 425.44/x
  3. Step 3: Cross multiply
    590.68x = 815.52 × 425.44
  4. Step 4: Simplify right side
    590.68x = 346,954.83
  5. Step 5: Solve for x
    x = 346,954.83/590.68
  6. Step 6: Final answer
    x = 587.38

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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.