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Finding the Fourth Proportional to 527.92, 790.80 and 450.88

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Solution

The fourth proportional to 527.92, 790.80 and 450.88 is: 675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.92 : 790.80 = 450.88 : x
  2. Step 2: Convert to fraction form
    527.92/790.80 = 450.88/x
  3. Step 3: Cross multiply
    527.92x = 790.80 × 450.88
  4. Step 4: Simplify right side
    527.92x = 356,555.90
  5. Step 5: Solve for x
    x = 356,555.90/527.92
  6. Step 6: Final answer
    x = 675.40

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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.