Home / 680,936.10-1,021,404.15-207,620.70

Finding the Fourth Proportional to 680,936.10, 1,021,404.15 and 207,620.70

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Solution

The fourth proportional to 680,936.10, 1,021,404.15 and 207,620.70 is: 311,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,936.10 : 1,021,404.15 = 207,620.70 : x
  2. Step 2: Convert to fraction form
    680,936.10/1,021,404.15 = 207,620.70/x
  3. Step 3: Cross multiply
    680,936.10x = 1,021,404.15 × 207,620.70
  4. Step 4: Simplify right side
    680,936.10x = 212,064,644,605.91
  5. Step 5: Solve for x
    x = 212,064,644,605.91/680,936.10
  6. Step 6: Final answer
    x = 311,431.05

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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.