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Finding the Fourth Proportional to 562.80, 774.36 and 549.84

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Solution

The fourth proportional to 562.80, 774.36 and 549.84 is: 756.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.80 : 774.36 = 549.84 : x
  2. Step 2: Convert to fraction form
    562.80/774.36 = 549.84/x
  3. Step 3: Cross multiply
    562.80x = 774.36 × 549.84
  4. Step 4: Simplify right side
    562.80x = 425,774.10
  5. Step 5: Solve for x
    x = 425,774.10/562.80
  6. Step 6: Final answer
    x = 756.53

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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.