Home / 679,546.32-1,019,325.50-206,231.60

Finding the Fourth Proportional to 679,546.32, 1,019,325.50 and 206,231.60

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Solution

The fourth proportional to 679,546.32, 1,019,325.50 and 206,231.60 is: 309,349.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,546.32 : 1,019,325.50 = 206,231.60 : x
  2. Step 2: Convert to fraction form
    679,546.32/1,019,325.50 = 206,231.60/x
  3. Step 3: Cross multiply
    679,546.32x = 1,019,325.50 × 206,231.60
  4. Step 4: Simplify right side
    679,546.32x = 210,217,128,785.80
  5. Step 5: Solve for x
    x = 210,217,128,785.80/679,546.32
  6. Step 6: Final answer
    x = 309,349.23

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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.