Home / 1,434,165.94-1,979,160.94-780,796.46

Finding the Fourth Proportional to 1,434,165.94, 1,979,160.94 and 780,796.46

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Solution

The fourth proportional to 1,434,165.94, 1,979,160.94 and 780,796.46 is: 1,077,505.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,165.94 : 1,979,160.94 = 780,796.46 : x
  2. Step 2: Convert to fraction form
    1,434,165.94/1,979,160.94 = 780,796.46/x
  3. Step 3: Cross multiply
    1,434,165.94x = 1,979,160.94 × 780,796.46
  4. Step 4: Simplify right side
    1,434,165.94x = 1,545,321,855,722.27
  5. Step 5: Solve for x
    x = 1,545,321,855,722.27/1,434,165.94
  6. Step 6: Final answer
    x = 1,077,505.62

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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.