Home / 406,355.96-609,574-140,081.44

Finding the Fourth Proportional to 406,355.96, 609,574 and 140,081.44

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Solution

The fourth proportional to 406,355.96, 609,574 and 140,081.44 is: 210,135.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,355.96 : 609,574 = 140,081.44 : x
  2. Step 2: Convert to fraction form
    406,355.96/609,574 = 140,081.44/x
  3. Step 3: Cross multiply
    406,355.96x = 609,574 × 140,081.44
  4. Step 4: Simplify right side
    406,355.96x = 85,390,003,706.56
  5. Step 5: Solve for x
    x = 85,390,003,706.56/406,355.96
  6. Step 6: Final answer
    x = 210,135.97

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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.