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Finding the Fourth Proportional to 562.86, 844.29 and 388.98

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Solution

The fourth proportional to 562.86, 844.29 and 388.98 is: 583.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.86 : 844.29 = 388.98 : x
  2. Step 2: Convert to fraction form
    562.86/844.29 = 388.98/x
  3. Step 3: Cross multiply
    562.86x = 844.29 × 388.98
  4. Step 4: Simplify right side
    562.86x = 328,411.92
  5. Step 5: Solve for x
    x = 328,411.92/562.86
  6. Step 6: Final answer
    x = 583.47

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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.