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Finding the Fourth Proportional to 562.98, 775.80 and 423.24

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Solution

The fourth proportional to 562.98, 775.80 and 423.24 is: 583.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.98 : 775.80 = 423.24 : x
  2. Step 2: Convert to fraction form
    562.98/775.80 = 423.24/x
  3. Step 3: Cross multiply
    562.98x = 775.80 × 423.24
  4. Step 4: Simplify right side
    562.98x = 328,349.59
  5. Step 5: Solve for x
    x = 328,349.59/562.98
  6. Step 6: Final answer
    x = 583.23

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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.