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Finding the Fourth Proportional to 637.51, 879.51 and 471.67

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Solution

The fourth proportional to 637.51, 879.51 and 471.67 is: 650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.51 : 879.51 = 471.67 : x
  2. Step 2: Convert to fraction form
    637.51/879.51 = 471.67/x
  3. Step 3: Cross multiply
    637.51x = 879.51 × 471.67
  4. Step 4: Simplify right side
    637.51x = 414,838.48
  5. Step 5: Solve for x
    x = 414,838.48/637.51
  6. Step 6: Final answer
    x = 650.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.