Home / 407,023.05-609,860.64-140,635.51

Finding the Fourth Proportional to 407,023.05, 609,860.64 and 140,635.51

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Solution

The fourth proportional to 407,023.05, 609,860.64 and 140,635.51 is: 210,720.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,023.05 : 609,860.64 = 140,635.51 : x
  2. Step 2: Convert to fraction form
    407,023.05/609,860.64 = 140,635.51/x
  3. Step 3: Cross multiply
    407,023.05x = 609,860.64 × 140,635.51
  4. Step 4: Simplify right side
    407,023.05x = 85,768,062,135.33
  5. Step 5: Solve for x
    x = 85,768,062,135.33/407,023.05
  6. Step 6: Final answer
    x = 210,720.41

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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.