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Finding the Fourth Proportional to 626.10, 937.23 and 611.70

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Solution

The fourth proportional to 626.10, 937.23 and 611.70 is: 915.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.10 : 937.23 = 611.70 : x
  2. Step 2: Convert to fraction form
    626.10/937.23 = 611.70/x
  3. Step 3: Cross multiply
    626.10x = 937.23 × 611.70
  4. Step 4: Simplify right side
    626.10x = 573,303.59
  5. Step 5: Solve for x
    x = 573,303.59/626.10
  6. Step 6: Final answer
    x = 915.67

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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.