Home / 699,360.48-965,108.25-393,435.90

Finding the Fourth Proportional to 699,360.48, 965,108.25 and 393,435.90

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Solution

The fourth proportional to 699,360.48, 965,108.25 and 393,435.90 is: 542,936.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,360.48 : 965,108.25 = 393,435.90 : x
  2. Step 2: Convert to fraction form
    699,360.48/965,108.25 = 393,435.90/x
  3. Step 3: Cross multiply
    699,360.48x = 965,108.25 × 393,435.90
  4. Step 4: Simplify right side
    699,360.48x = 379,708,232,936.18
  5. Step 5: Solve for x
    x = 379,708,232,936.18/699,360.48
  6. Step 6: Final answer
    x = 542,936.36

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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.