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Finding the Fourth Proportional to 562.91, 776.06 and 376.43

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Solution

The fourth proportional to 562.91, 776.06 and 376.43 is: 518.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.91 : 776.06 = 376.43 : x
  2. Step 2: Convert to fraction form
    562.91/776.06 = 376.43/x
  3. Step 3: Cross multiply
    562.91x = 776.06 × 376.43
  4. Step 4: Simplify right side
    562.91x = 292,130.38
  5. Step 5: Solve for x
    x = 292,130.38/562.91
  6. Step 6: Final answer
    x = 518.96

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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.