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Finding the Fourth Proportional to 762.50, 1,052.26 and 452

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Solution

The fourth proportional to 762.50, 1,052.26 and 452 is: 623.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    762.50 : 1,052.26 = 452 : x
  2. Step 2: Convert to fraction form
    762.50/1,052.26 = 452/x
  3. Step 3: Cross multiply
    762.50x = 1,052.26 × 452
  4. Step 4: Simplify right side
    762.50x = 475,621.52
  5. Step 5: Solve for x
    x = 475,621.52/762.50
  6. Step 6: Final answer
    x = 623.77

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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.