Home / 1,380,311.77-1,904,387.20-836,273.65

Finding the Fourth Proportional to 1,380,311.77, 1,904,387.20 and 836,273.65

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Solution

The fourth proportional to 1,380,311.77, 1,904,387.20 and 836,273.65 is: 1,153,789.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,311.77 : 1,904,387.20 = 836,273.65 : x
  2. Step 2: Convert to fraction form
    1,380,311.77/1,904,387.20 = 836,273.65/x
  3. Step 3: Cross multiply
    1,380,311.77x = 1,904,387.20 × 836,273.65
  4. Step 4: Simplify right side
    1,380,311.77x = 1,592,588,834,757.28
  5. Step 5: Solve for x
    x = 1,592,588,834,757.28/1,380,311.77
  6. Step 6: Final answer
    x = 1,153,789.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.