Home / 426,365.78-639,499.05-110,847.29

Finding the Fourth Proportional to 426,365.78, 639,499.05 and 110,847.29

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Solution

The fourth proportional to 426,365.78, 639,499.05 and 110,847.29 is: 166,258.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,365.78 : 639,499.05 = 110,847.29 : x
  2. Step 2: Convert to fraction form
    426,365.78/639,499.05 = 110,847.29/x
  3. Step 3: Cross multiply
    426,365.78x = 639,499.05 × 110,847.29
  4. Step 4: Simplify right side
    426,365.78x = 70,886,733,452.58
  5. Step 5: Solve for x
    x = 70,886,733,452.58/426,365.78
  6. Step 6: Final answer
    x = 166,258.03

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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.