Home / 486,669.70-671,537.78-271,782.36

Finding the Fourth Proportional to 486,669.70, 671,537.78 and 271,782.36

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Solution

The fourth proportional to 486,669.70, 671,537.78 and 271,782.36 is: 375,022.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,669.70 : 671,537.78 = 271,782.36 : x
  2. Step 2: Convert to fraction form
    486,669.70/671,537.78 = 271,782.36/x
  3. Step 3: Cross multiply
    486,669.70x = 671,537.78 × 271,782.36
  4. Step 4: Simplify right side
    486,669.70x = 182,512,122,677.56
  5. Step 5: Solve for x
    x = 182,512,122,677.56/486,669.70
  6. Step 6: Final answer
    x = 375,022.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.