Home / 1,340,411.70-2,010,617.55-1,278,203.70

Finding the Fourth Proportional to 1,340,411.70, 2,010,617.55 and 1,278,203.70

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Solution

The fourth proportional to 1,340,411.70, 2,010,617.55 and 1,278,203.70 is: 1,917,305.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,411.70 : 2,010,617.55 = 1,278,203.70 : x
  2. Step 2: Convert to fraction form
    1,340,411.70/2,010,617.55 = 1,278,203.70/x
  3. Step 3: Cross multiply
    1,340,411.70x = 2,010,617.55 × 1,278,203.70
  4. Step 4: Simplify right side
    1,340,411.70x = 2,569,978,791,694.94
  5. Step 5: Solve for x
    x = 2,569,978,791,694.94/1,340,411.70
  6. Step 6: Final answer
    x = 1,917,305.55

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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.