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Finding the Fourth Proportional to 590.28, 890.13 and 579.36

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Solution

The fourth proportional to 590.28, 890.13 and 579.36 is: 873.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.28 : 890.13 = 579.36 : x
  2. Step 2: Convert to fraction form
    590.28/890.13 = 579.36/x
  3. Step 3: Cross multiply
    590.28x = 890.13 × 579.36
  4. Step 4: Simplify right side
    590.28x = 515,705.72
  5. Step 5: Solve for x
    x = 515,705.72/590.28
  6. Step 6: Final answer
    x = 873.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.