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Finding the Fourth Proportional to 590.98, 813.76 and 424.88

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Solution

The fourth proportional to 590.98, 813.76 and 424.88 is: 585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.98 : 813.76 = 424.88 : x
  2. Step 2: Convert to fraction form
    590.98/813.76 = 424.88/x
  3. Step 3: Cross multiply
    590.98x = 813.76 × 424.88
  4. Step 4: Simplify right side
    590.98x = 345,750.35
  5. Step 5: Solve for x
    x = 345,750.35/590.98
  6. Step 6: Final answer
    x = 585.05

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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.