Home / 1,412,687.55-1,949,455.06-768,108.28

Finding the Fourth Proportional to 1,412,687.55, 1,949,455.06 and 768,108.28

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Solution

The fourth proportional to 1,412,687.55, 1,949,455.06 and 768,108.28 is: 1,059,960.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,687.55 : 1,949,455.06 = 768,108.28 : x
  2. Step 2: Convert to fraction form
    1,412,687.55/1,949,455.06 = 768,108.28/x
  3. Step 3: Cross multiply
    1,412,687.55x = 1,949,455.06 × 768,108.28
  4. Step 4: Simplify right side
    1,412,687.55x = 1,497,392,563,326.62
  5. Step 5: Solve for x
    x = 1,497,392,563,326.62/1,412,687.55
  6. Step 6: Final answer
    x = 1,059,960.19

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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.