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Finding the Fourth Proportional to 610.04, 915.03 and 489.75

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Solution

The fourth proportional to 610.04, 915.03 and 489.75 is: 734.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.04 : 915.03 = 489.75 : x
  2. Step 2: Convert to fraction form
    610.04/915.03 = 489.75/x
  3. Step 3: Cross multiply
    610.04x = 915.03 × 489.75
  4. Step 4: Simplify right side
    610.04x = 448,135.94
  5. Step 5: Solve for x
    x = 448,135.94/610.04
  6. Step 6: Final answer
    x = 734.61

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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.