Home / 687,631.80-1,031,706.90-332,959.80

Finding the Fourth Proportional to 687,631.80, 1,031,706.90 and 332,959.80

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Solution

The fourth proportional to 687,631.80, 1,031,706.90 and 332,959.80 is: 499,565.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,631.80 : 1,031,706.90 = 332,959.80 : x
  2. Step 2: Convert to fraction form
    687,631.80/1,031,706.90 = 332,959.80/x
  3. Step 3: Cross multiply
    687,631.80x = 1,031,706.90 × 332,959.80
  4. Step 4: Simplify right side
    687,631.80x = 343,516,923,082.62
  5. Step 5: Solve for x
    x = 343,516,923,082.62/687,631.80
  6. Step 6: Final answer
    x = 499,565.21

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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.