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Finding the Fourth Proportional to 733.95, 1,012.10 and 512.82

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Solution

The fourth proportional to 733.95, 1,012.10 and 512.82 is: 707.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.95 : 1,012.10 = 512.82 : x
  2. Step 2: Convert to fraction form
    733.95/1,012.10 = 512.82/x
  3. Step 3: Cross multiply
    733.95x = 1,012.10 × 512.82
  4. Step 4: Simplify right side
    733.95x = 519,022.56
  5. Step 5: Solve for x
    x = 519,022.56/733.95
  6. Step 6: Final answer
    x = 707.16

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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.