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Finding the Fourth Proportional to 562.60, 774.66 and 530.56

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Solution

The fourth proportional to 562.60, 774.66 and 530.56 is: 730.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.60 : 774.66 = 530.56 : x
  2. Step 2: Convert to fraction form
    562.60/774.66 = 530.56/x
  3. Step 3: Cross multiply
    562.60x = 774.66 × 530.56
  4. Step 4: Simplify right side
    562.60x = 411,003.61
  5. Step 5: Solve for x
    x = 411,003.61/562.60
  6. Step 6: Final answer
    x = 730.54

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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.