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Finding the Fourth Proportional to 526.89, 789.48 and 372.57

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Solution

The fourth proportional to 526.89, 789.48 and 372.57 is: 558.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.89 : 789.48 = 372.57 : x
  2. Step 2: Convert to fraction form
    526.89/789.48 = 372.57/x
  3. Step 3: Cross multiply
    526.89x = 789.48 × 372.57
  4. Step 4: Simplify right side
    526.89x = 294,136.56
  5. Step 5: Solve for x
    x = 294,136.56/526.89
  6. Step 6: Final answer
    x = 558.25

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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.