Home / 1,378,868.49-1,902,061.58-827,441.55

Finding the Fourth Proportional to 1,378,868.49, 1,902,061.58 and 827,441.55

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Solution

The fourth proportional to 1,378,868.49, 1,902,061.58 and 827,441.55 is: 1,141,403.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,868.49 : 1,902,061.58 = 827,441.55 : x
  2. Step 2: Convert to fraction form
    1,378,868.49/1,902,061.58 = 827,441.55/x
  3. Step 3: Cross multiply
    1,378,868.49x = 1,902,061.58 × 827,441.55
  4. Step 4: Simplify right side
    1,378,868.49x = 1,573,844,777,813.44
  5. Step 5: Solve for x
    x = 1,573,844,777,813.44/1,378,868.49
  6. Step 6: Final answer
    x = 1,141,403.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.