Home / 2,918,205.70-4,375,234.95-1,321,533.70

Finding the Fourth Proportional to 2,918,205.70, 4,375,234.95 and 1,321,533.70

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Solution

The fourth proportional to 2,918,205.70, 4,375,234.95 and 1,321,533.70 is: 1,981,361.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,205.70 : 4,375,234.95 = 1,321,533.70 : x
  2. Step 2: Convert to fraction form
    2,918,205.70/4,375,234.95 = 1,321,533.70/x
  3. Step 3: Cross multiply
    2,918,205.70x = 4,375,234.95 × 1,321,533.70
  4. Step 4: Simplify right side
    2,918,205.70x = 5,782,020,431,842.82
  5. Step 5: Solve for x
    x = 5,782,020,431,842.82/2,918,205.70
  6. Step 6: Final answer
    x = 1,981,361.50

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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.