Home / 679,676.29-1,019,448.51-206,365.75

Finding the Fourth Proportional to 679,676.29, 1,019,448.51 and 206,365.75

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Solution

The fourth proportional to 679,676.29, 1,019,448.51 and 206,365.75 is: 309,528.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,676.29 : 1,019,448.51 = 206,365.75 : x
  2. Step 2: Convert to fraction form
    679,676.29/1,019,448.51 = 206,365.75/x
  3. Step 3: Cross multiply
    679,676.29x = 1,019,448.51 × 206,365.75
  4. Step 4: Simplify right side
    679,676.29x = 210,379,256,352.53
  5. Step 5: Solve for x
    x = 210,379,256,352.53/679,676.29
  6. Step 6: Final answer
    x = 309,528.61

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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.