Home / 679,676.99-1,019,449.67-206,366.45

Finding the Fourth Proportional to 679,676.99, 1,019,449.67 and 206,366.45

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Solution

The fourth proportional to 679,676.99, 1,019,449.67 and 206,366.45 is: 309,529.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,676.99 : 1,019,449.67 = 206,366.45 : x
  2. Step 2: Convert to fraction form
    679,676.99/1,019,449.67 = 206,366.45/x
  3. Step 3: Cross multiply
    679,676.99x = 1,019,449.67 × 206,366.45
  4. Step 4: Simplify right side
    679,676.99x = 210,380,203,222.49
  5. Step 5: Solve for x
    x = 210,380,203,222.49/679,676.99
  6. Step 6: Final answer
    x = 309,529.69

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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.