Home / 694,408.20-958,371.46-388,501.64

Finding the Fourth Proportional to 694,408.20, 958,371.46 and 388,501.64

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Solution

The fourth proportional to 694,408.20, 958,371.46 and 388,501.64 is: 536,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,408.20 : 958,371.46 = 388,501.64 : x
  2. Step 2: Convert to fraction form
    694,408.20/958,371.46 = 388,501.64/x
  3. Step 3: Cross multiply
    694,408.20x = 958,371.46 × 388,501.64
  4. Step 4: Simplify right side
    694,408.20x = 372,328,883,939.19
  5. Step 5: Solve for x
    x = 372,328,883,939.19/694,408.20
  6. Step 6: Final answer
    x = 536,181.58

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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.