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Finding the Fourth Proportional to 527.85, 790.02 and 397.53

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Solution

The fourth proportional to 527.85, 790.02 and 397.53 is: 594.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.85 : 790.02 = 397.53 : x
  2. Step 2: Convert to fraction form
    527.85/790.02 = 397.53/x
  3. Step 3: Cross multiply
    527.85x = 790.02 × 397.53
  4. Step 4: Simplify right side
    527.85x = 314,056.65
  5. Step 5: Solve for x
    x = 314,056.65/527.85
  6. Step 6: Final answer
    x = 594.97

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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.