Home / 1,309,538.80-1,807,145.40-736,579.36

Finding the Fourth Proportional to 1,309,538.80, 1,807,145.40 and 736,579.36

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Solution

The fourth proportional to 1,309,538.80, 1,807,145.40 and 736,579.36 is: 1,016,469.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,538.80 : 1,807,145.40 = 736,579.36 : x
  2. Step 2: Convert to fraction form
    1,309,538.80/1,807,145.40 = 736,579.36/x
  3. Step 3: Cross multiply
    1,309,538.80x = 1,807,145.40 × 736,579.36
  4. Step 4: Simplify right side
    1,309,538.80x = 1,331,106,002,158.94
  5. Step 5: Solve for x
    x = 1,331,106,002,158.94/1,309,538.80
  6. Step 6: Final answer
    x = 1,016,469.31

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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.