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Finding the Fourth Proportional to 676.59, 931.82 and 632.67

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Solution

The fourth proportional to 676.59, 931.82 and 632.67 is: 871.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.59 : 931.82 = 632.67 : x
  2. Step 2: Convert to fraction form
    676.59/931.82 = 632.67/x
  3. Step 3: Cross multiply
    676.59x = 931.82 × 632.67
  4. Step 4: Simplify right side
    676.59x = 589,534.56
  5. Step 5: Solve for x
    x = 589,534.56/676.59
  6. Step 6: Final answer
    x = 871.33

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1.5x scale

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.