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Finding the Fourth Proportional to 3,947,813.70, 5,921,720.55 and 955,997.70

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Solution

The fourth proportional to 3,947,813.70, 5,921,720.55 and 955,997.70 is: 1,433,996.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947,813.70 : 5,921,720.55 = 955,997.70 : x
  2. Step 2: Convert to fraction form
    3,947,813.70/5,921,720.55 = 955,997.70/x
  3. Step 3: Cross multiply
    3,947,813.70x = 5,921,720.55 × 955,997.70
  4. Step 4: Simplify right side
    3,947,813.70x = 5,661,151,225,842.74
  5. Step 5: Solve for x
    x = 5,661,151,225,842.74/3,947,813.70
  6. Step 6: Final answer
    x = 1,433,996.55

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Similar ratio
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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.