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Finding the Fourth Proportional to 452.17, 619.92 and 439.93

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Solution

The fourth proportional to 452.17, 619.92 and 439.93 is: 603.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.17 : 619.92 = 439.93 : x
  2. Step 2: Convert to fraction form
    452.17/619.92 = 439.93/x
  3. Step 3: Cross multiply
    452.17x = 619.92 × 439.93
  4. Step 4: Simplify right side
    452.17x = 272,721.41
  5. Step 5: Solve for x
    x = 272,721.41/452.17
  6. Step 6: Final answer
    x = 603.14

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.