Home / 654,395.45-982,118.12-338,942.57

Finding the Fourth Proportional to 654,395.45, 982,118.12 and 338,942.57

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Solution

The fourth proportional to 654,395.45, 982,118.12 and 338,942.57 is: 508,685.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,395.45 : 982,118.12 = 338,942.57 : x
  2. Step 2: Convert to fraction form
    654,395.45/982,118.12 = 338,942.57/x
  3. Step 3: Cross multiply
    654,395.45x = 982,118.12 × 338,942.57
  4. Step 4: Simplify right side
    654,395.45x = 332,881,633,031.07
  5. Step 5: Solve for x
    x = 332,881,633,031.07/654,395.45
  6. Step 6: Final answer
    x = 508,685.74

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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.