Home / 680,858.57-1,021,288.13-679,874.69

Finding the Fourth Proportional to 680,858.57, 1,021,288.13 and 679,874.69

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Solution

The fourth proportional to 680,858.57, 1,021,288.13 and 679,874.69 is: 1,019,812.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,858.57 : 1,021,288.13 = 679,874.69 : x
  2. Step 2: Convert to fraction form
    680,858.57/1,021,288.13 = 679,874.69/x
  3. Step 3: Cross multiply
    680,858.57x = 1,021,288.13 × 679,874.69
  4. Step 4: Simplify right side
    680,858.57x = 694,347,942,278.62
  5. Step 5: Solve for x
    x = 694,347,942,278.62/680,858.57
  6. Step 6: Final answer
    x = 1,019,812.30

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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.