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Finding the Fourth Proportional to 590.18, 814.05 and 403.37

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Solution

The fourth proportional to 590.18, 814.05 and 403.37 is: 556.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.18 : 814.05 = 403.37 : x
  2. Step 2: Convert to fraction form
    590.18/814.05 = 403.37/x
  3. Step 3: Cross multiply
    590.18x = 814.05 × 403.37
  4. Step 4: Simplify right side
    590.18x = 328,359.28
  5. Step 5: Solve for x
    x = 328,359.28/590.18
  6. Step 6: Final answer
    x = 556.38

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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.