Home / 423,822.08-635,718.72-199,056.80

Finding the Fourth Proportional to 423,822.08, 635,718.72 and 199,056.80

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Solution

The fourth proportional to 423,822.08, 635,718.72 and 199,056.80 is: 298,578.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,822.08 : 635,718.72 = 199,056.80 : x
  2. Step 2: Convert to fraction form
    423,822.08/635,718.72 = 199,056.80/x
  3. Step 3: Cross multiply
    423,822.08x = 635,718.72 × 199,056.80
  4. Step 4: Simplify right side
    423,822.08x = 126,544,134,103.30
  5. Step 5: Solve for x
    x = 126,544,134,103.30/423,822.08
  6. Step 6: Final answer
    x = 298,578.44

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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.