Home / 406,336.68-609,387.33-122,015.74

Finding the Fourth Proportional to 406,336.68, 609,387.33 and 122,015.74

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Solution

The fourth proportional to 406,336.68, 609,387.33 and 122,015.74 is: 182,988.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,336.68 : 609,387.33 = 122,015.74 : x
  2. Step 2: Convert to fraction form
    406,336.68/609,387.33 = 122,015.74/x
  3. Step 3: Cross multiply
    406,336.68x = 609,387.33 × 122,015.74
  4. Step 4: Simplify right side
    406,336.68x = 74,354,846,016.57
  5. Step 5: Solve for x
    x = 74,354,846,016.57/406,336.68
  6. Step 6: Final answer
    x = 182,988.27

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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.