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Finding the Fourth Proportional to 406,773.80, 610,154.22 and 126,291.32

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Solution

The fourth proportional to 406,773.80, 610,154.22 and 126,291.32 is: 189,434.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,773.80 : 610,154.22 = 126,291.32 : x
  2. Step 2: Convert to fraction form
    406,773.80/610,154.22 = 126,291.32/x
  3. Step 3: Cross multiply
    406,773.80x = 610,154.22 × 126,291.32
  4. Step 4: Simplify right side
    406,773.80x = 77,057,181,847.37
  5. Step 5: Solve for x
    x = 77,057,181,847.37/406,773.80
  6. Step 6: Final answer
    x = 189,434.97

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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.