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Finding the Fourth Proportional to 590.03, 815.03 and 480.88

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Solution

The fourth proportional to 590.03, 815.03 and 480.88 is: 664.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.03 : 815.03 = 480.88 : x
  2. Step 2: Convert to fraction form
    590.03/815.03 = 480.88/x
  3. Step 3: Cross multiply
    590.03x = 815.03 × 480.88
  4. Step 4: Simplify right side
    590.03x = 391,931.63
  5. Step 5: Solve for x
    x = 391,931.63/590.03
  6. Step 6: Final answer
    x = 664.26

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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.