Home / 497,429.96-686,481.39-376,361.05

Finding the Fourth Proportional to 497,429.96, 686,481.39 and 376,361.05

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Solution

The fourth proportional to 497,429.96, 686,481.39 and 376,361.05 is: 519,399.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,429.96 : 686,481.39 = 376,361.05 : x
  2. Step 2: Convert to fraction form
    497,429.96/686,481.39 = 376,361.05/x
  3. Step 3: Cross multiply
    497,429.96x = 686,481.39 × 376,361.05
  4. Step 4: Simplify right side
    497,429.96x = 258,364,856,745.86
  5. Step 5: Solve for x
    x = 258,364,856,745.86/497,429.96
  6. Step 6: Final answer
    x = 519,399.47

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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.