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Finding the Fourth Proportional to 527.43, 790.44 and 322.17

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Solution

The fourth proportional to 527.43, 790.44 and 322.17 is: 482.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.43 : 790.44 = 322.17 : x
  2. Step 2: Convert to fraction form
    527.43/790.44 = 322.17/x
  3. Step 3: Cross multiply
    527.43x = 790.44 × 322.17
  4. Step 4: Simplify right side
    527.43x = 254,656.05
  5. Step 5: Solve for x
    x = 254,656.05/527.43
  6. Step 6: Final answer
    x = 482.82

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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.