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Finding the Fourth Proportional to 762.17, 1,051.66 and 467.53

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Solution

The fourth proportional to 762.17, 1,051.66 and 467.53 is: 645.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    762.17 : 1,051.66 = 467.53 : x
  2. Step 2: Convert to fraction form
    762.17/1,051.66 = 467.53/x
  3. Step 3: Cross multiply
    762.17x = 1,051.66 × 467.53
  4. Step 4: Simplify right side
    762.17x = 491,682.60
  5. Step 5: Solve for x
    x = 491,682.60/762.17
  6. Step 6: Final answer
    x = 645.11

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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.