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Finding the Fourth Proportional to 590.80, 814.16 and 581.36

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Solution

The fourth proportional to 590.80, 814.16 and 581.36 is: 801.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.80 : 814.16 = 581.36 : x
  2. Step 2: Convert to fraction form
    590.80/814.16 = 581.36/x
  3. Step 3: Cross multiply
    590.80x = 814.16 × 581.36
  4. Step 4: Simplify right side
    590.80x = 473,320.06
  5. Step 5: Solve for x
    x = 473,320.06/590.80
  6. Step 6: Final answer
    x = 801.15

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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.