Home / 3,315,815.40-4,970,036.70-1,422,234.60

Finding the Fourth Proportional to 3,315,815.40, 4,970,036.70 and 1,422,234.60

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Solution

The fourth proportional to 3,315,815.40, 4,970,036.70 and 1,422,234.60 is: 2,131,770.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,815.40 : 4,970,036.70 = 1,422,234.60 : x
  2. Step 2: Convert to fraction form
    3,315,815.40/4,970,036.70 = 1,422,234.60/x
  3. Step 3: Cross multiply
    3,315,815.40x = 4,970,036.70 × 1,422,234.60
  4. Step 4: Simplify right side
    3,315,815.40x = 7,068,558,158,009.82
  5. Step 5: Solve for x
    x = 7,068,558,158,009.82/3,315,815.40
  6. Step 6: Final answer
    x = 2,131,770.71

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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.