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Finding the Fourth Proportional to 637.29, 874.58 and 626.49

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Solution

The fourth proportional to 637.29, 874.58 and 626.49 is: 859.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.29 : 874.58 = 626.49 : x
  2. Step 2: Convert to fraction form
    637.29/874.58 = 626.49/x
  3. Step 3: Cross multiply
    637.29x = 874.58 × 626.49
  4. Step 4: Simplify right side
    637.29x = 547,912.49
  5. Step 5: Solve for x
    x = 547,912.49/637.29
  6. Step 6: Final answer
    x = 859.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.