Home / 406,656.11-561,185.42-225,395.28

Finding the Fourth Proportional to 406,656.11, 561,185.42 and 225,395.28

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Solution

The fourth proportional to 406,656.11, 561,185.42 and 225,395.28 is: 311,045.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,656.11 : 561,185.42 = 225,395.28 : x
  2. Step 2: Convert to fraction form
    406,656.11/561,185.42 = 225,395.28/x
  3. Step 3: Cross multiply
    406,656.11x = 561,185.42 × 225,395.28
  4. Step 4: Simplify right side
    406,656.11x = 126,488,543,745.84
  5. Step 5: Solve for x
    x = 126,488,543,745.84/406,656.11
  6. Step 6: Final answer
    x = 311,045.48

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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.