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Finding the Fourth Proportional to 583.20, 869.57 and 562.12

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Solution

The fourth proportional to 583.20, 869.57 and 562.12 is: 838.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.20 : 869.57 = 562.12 : x
  2. Step 2: Convert to fraction form
    583.20/869.57 = 562.12/x
  3. Step 3: Cross multiply
    583.20x = 869.57 × 562.12
  4. Step 4: Simplify right side
    583.20x = 488,802.69
  5. Step 5: Solve for x
    x = 488,802.69/583.20
  6. Step 6: Final answer
    x = 838.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.