Home / 404,121.20-607,056.60-389,249.60

Finding the Fourth Proportional to 404,121.20, 607,056.60 and 389,249.60

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Solution

The fourth proportional to 404,121.20, 607,056.60 and 389,249.60 is: 584,717.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,121.20 : 607,056.60 = 389,249.60 : x
  2. Step 2: Convert to fraction form
    404,121.20/607,056.60 = 389,249.60/x
  3. Step 3: Cross multiply
    404,121.20x = 607,056.60 × 389,249.60
  4. Step 4: Simplify right side
    404,121.20x = 236,296,538,727.36
  5. Step 5: Solve for x
    x = 236,296,538,727.36/404,121.20
  6. Step 6: Final answer
    x = 584,717.01

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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.