Home / 687,626.80-1,031,699.40-332,954.80

Finding the Fourth Proportional to 687,626.80, 1,031,699.40 and 332,954.80

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Solution

The fourth proportional to 687,626.80, 1,031,699.40 and 332,954.80 is: 499,557.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,626.80 : 1,031,699.40 = 332,954.80 : x
  2. Step 2: Convert to fraction form
    687,626.80/1,031,699.40 = 332,954.80/x
  3. Step 3: Cross multiply
    687,626.80x = 1,031,699.40 × 332,954.80
  4. Step 4: Simplify right side
    687,626.80x = 343,509,267,387.12
  5. Step 5: Solve for x
    x = 343,509,267,387.12/687,626.80
  6. Step 6: Final answer
    x = 499,557.71

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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.