Home / 1,278,035.16-1,917,450.56-379,481.60

Finding the Fourth Proportional to 1,278,035.16, 1,917,450.56 and 379,481.60

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Solution

The fourth proportional to 1,278,035.16, 1,917,450.56 and 379,481.60 is: 569,340.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,035.16 : 1,917,450.56 = 379,481.60 : x
  2. Step 2: Convert to fraction form
    1,278,035.16/1,917,450.56 = 379,481.60/x
  3. Step 3: Cross multiply
    1,278,035.16x = 1,917,450.56 × 379,481.60
  4. Step 4: Simplify right side
    1,278,035.16x = 727,637,206,429.70
  5. Step 5: Solve for x
    x = 727,637,206,429.70/1,278,035.16
  6. Step 6: Final answer
    x = 569,340.52

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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.