Home / 4,914,947.21-7,372,414.48-1,320,714.20

Finding the Fourth Proportional to 4,914,947.21, 7,372,414.48 and 1,320,714.20

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Solution

The fourth proportional to 4,914,947.21, 7,372,414.48 and 1,320,714.20 is: 1,981,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914,947.21 : 7,372,414.48 = 1,320,714.20 : x
  2. Step 2: Convert to fraction form
    4,914,947.21/7,372,414.48 = 1,320,714.20/x
  3. Step 3: Cross multiply
    4,914,947.21x = 7,372,414.48 × 1,320,714.20
  4. Step 4: Simplify right side
    4,914,947.21x = 9,736,852,493,688.68
  5. Step 5: Solve for x
    x = 9,736,852,493,688.68/4,914,947.21
  6. Step 6: Final answer
    x = 1,981,069.60

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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.