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Finding the Fourth Proportional to 590.46, 813.99 and 415.26

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Solution

The fourth proportional to 590.46, 813.99 and 415.26 is: 572.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.46 : 813.99 = 415.26 : x
  2. Step 2: Convert to fraction form
    590.46/813.99 = 415.26/x
  3. Step 3: Cross multiply
    590.46x = 813.99 × 415.26
  4. Step 4: Simplify right side
    590.46x = 338,017.49
  5. Step 5: Solve for x
    x = 338,017.49/590.46
  6. Step 6: Final answer
    x = 572.46

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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.