Home / 680,874.10-1,021,201.80-207,449.35

Finding the Fourth Proportional to 680,874.10, 1,021,201.80 and 207,449.35

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Solution

The fourth proportional to 680,874.10, 1,021,201.80 and 207,449.35 is: 311,140.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,874.10 : 1,021,201.80 = 207,449.35 : x
  2. Step 2: Convert to fraction form
    680,874.10/1,021,201.80 = 207,449.35/x
  3. Step 3: Cross multiply
    680,874.10x = 1,021,201.80 × 207,449.35
  4. Step 4: Simplify right side
    680,874.10x = 211,847,649,628.83
  5. Step 5: Solve for x
    x = 211,847,649,628.83/680,874.10
  6. Step 6: Final answer
    x = 311,140.71

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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.