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Finding the Fourth Proportional to 510.82, 704.82 and 436.41

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Solution

The fourth proportional to 510.82, 704.82 and 436.41 is: 602.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.82 : 704.82 = 436.41 : x
  2. Step 2: Convert to fraction form
    510.82/704.82 = 436.41/x
  3. Step 3: Cross multiply
    510.82x = 704.82 × 436.41
  4. Step 4: Simplify right side
    510.82x = 307,590.50
  5. Step 5: Solve for x
    x = 307,590.50/510.82
  6. Step 6: Final answer
    x = 602.15

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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.