Home / 2,078,768.55-3,115,820.03-1,180,640.55

Finding the Fourth Proportional to 2,078,768.55, 3,115,820.03 and 1,180,640.55

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Solution

The fourth proportional to 2,078,768.55, 3,115,820.03 and 1,180,640.55 is: 1,769,635.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,768.55 : 3,115,820.03 = 1,180,640.55 : x
  2. Step 2: Convert to fraction form
    2,078,768.55/3,115,820.03 = 1,180,640.55/x
  3. Step 3: Cross multiply
    2,078,768.55x = 3,115,820.03 × 1,180,640.55
  4. Step 4: Simplify right side
    2,078,768.55x = 3,678,663,468,017.01
  5. Step 5: Solve for x
    x = 3,678,663,468,017.01/2,078,768.55
  6. Step 6: Final answer
    x = 1,769,635.91

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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.