Home / 687,367.14-1,031,378.85-332,183.76

Finding the Fourth Proportional to 687,367.14, 1,031,378.85 and 332,183.76

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Solution

The fourth proportional to 687,367.14, 1,031,378.85 and 332,183.76 is: 498,434.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,367.14 : 1,031,378.85 = 332,183.76 : x
  2. Step 2: Convert to fraction form
    687,367.14/1,031,378.85 = 332,183.76/x
  3. Step 3: Cross multiply
    687,367.14x = 1,031,378.85 × 332,183.76
  4. Step 4: Simplify right side
    687,367.14x = 342,607,304,377.48
  5. Step 5: Solve for x
    x = 342,607,304,377.48/687,367.14
  6. Step 6: Final answer
    x = 498,434.22

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1.5x scale

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.