Home / 679,530.80-1,019,296.20-206,193.20

Finding the Fourth Proportional to 679,530.80, 1,019,296.20 and 206,193.20

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Solution

The fourth proportional to 679,530.80, 1,019,296.20 and 206,193.20 is: 309,289.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,530.80 : 1,019,296.20 = 206,193.20 : x
  2. Step 2: Convert to fraction form
    679,530.80/1,019,296.20 = 206,193.20/x
  3. Step 3: Cross multiply
    679,530.80x = 1,019,296.20 × 206,193.20
  4. Step 4: Simplify right side
    679,530.80x = 210,171,945,225.84
  5. Step 5: Solve for x
    x = 210,171,945,225.84/679,530.80
  6. Step 6: Final answer
    x = 309,289.80

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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.