Home / 675,108.68-1,013,161.44-320,123.94

Finding the Fourth Proportional to 675,108.68, 1,013,161.44 and 320,123.94

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Solution

The fourth proportional to 675,108.68, 1,013,161.44 and 320,123.94 is: 480,422.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,108.68 : 1,013,161.44 = 320,123.94 : x
  2. Step 2: Convert to fraction form
    675,108.68/1,013,161.44 = 320,123.94/x
  3. Step 3: Cross multiply
    675,108.68x = 1,013,161.44 × 320,123.94
  4. Step 4: Simplify right side
    675,108.68x = 324,337,232,028.87
  5. Step 5: Solve for x
    x = 324,337,232,028.87/675,108.68
  6. Step 6: Final answer
    x = 480,422.26

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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.