Home / 2,772,809.70-4,159,214.55-1,279,817.70

Finding the Fourth Proportional to 2,772,809.70, 4,159,214.55 and 1,279,817.70

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Solution

The fourth proportional to 2,772,809.70, 4,159,214.55 and 1,279,817.70 is: 1,919,726.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772,809.70 : 4,159,214.55 = 1,279,817.70 : x
  2. Step 2: Convert to fraction form
    2,772,809.70/4,159,214.55 = 1,279,817.70/x
  3. Step 3: Cross multiply
    2,772,809.70x = 4,159,214.55 × 1,279,817.70
  4. Step 4: Simplify right side
    2,772,809.70x = 5,323,036,399,187.53
  5. Step 5: Solve for x
    x = 5,323,036,399,187.53/2,772,809.70
  6. Step 6: Final answer
    x = 1,919,726.55

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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.