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Finding the Fourth Proportional to 623.99, 937.20 and 508.52

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Solution

The fourth proportional to 623.99, 937.20 and 508.52 is: 763.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.99 : 937.20 = 508.52 : x
  2. Step 2: Convert to fraction form
    623.99/937.20 = 508.52/x
  3. Step 3: Cross multiply
    623.99x = 937.20 × 508.52
  4. Step 4: Simplify right side
    623.99x = 476,584.94
  5. Step 5: Solve for x
    x = 476,584.94/623.99
  6. Step 6: Final answer
    x = 763.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.