Home / 2,115,278.20-3,171,750.90-851,678.20

Finding the Fourth Proportional to 2,115,278.20, 3,171,750.90 and 851,678.20

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Solution

The fourth proportional to 2,115,278.20, 3,171,750.90 and 851,678.20 is: 1,277,047.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,278.20 : 3,171,750.90 = 851,678.20 : x
  2. Step 2: Convert to fraction form
    2,115,278.20/3,171,750.90 = 851,678.20/x
  3. Step 3: Cross multiply
    2,115,278.20x = 3,171,750.90 × 851,678.20
  4. Step 4: Simplify right side
    2,115,278.20x = 2,701,311,097,360.38
  5. Step 5: Solve for x
    x = 2,701,311,097,360.38/2,115,278.20
  6. Step 6: Final answer
    x = 1,277,047.67

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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.