Home / 680,995.32-1,021,138.28-254,180.12

Finding the Fourth Proportional to 680,995.32, 1,021,138.28 and 254,180.12

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Solution

The fourth proportional to 680,995.32, 1,021,138.28 and 254,180.12 is: 381,137.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,995.32 : 1,021,138.28 = 254,180.12 : x
  2. Step 2: Convert to fraction form
    680,995.32/1,021,138.28 = 254,180.12/x
  3. Step 3: Cross multiply
    680,995.32x = 1,021,138.28 × 254,180.12
  4. Step 4: Simplify right side
    680,995.32x = 259,553,050,546.99
  5. Step 5: Solve for x
    x = 259,553,050,546.99/680,995.32
  6. Step 6: Final answer
    x = 381,137.79

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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.