Home / 1,301,780.80-1,796,250.24-728,845.12

Finding the Fourth Proportional to 1,301,780.80, 1,796,250.24 and 728,845.12

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Solution

The fourth proportional to 1,301,780.80, 1,796,250.24 and 728,845.12 is: 1,005,690.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,780.80 : 1,796,250.24 = 728,845.12 : x
  2. Step 2: Convert to fraction form
    1,301,780.80/1,796,250.24 = 728,845.12/x
  3. Step 3: Cross multiply
    1,301,780.80x = 1,796,250.24 × 728,845.12
  4. Step 4: Simplify right side
    1,301,780.80x = 1,309,188,221,722.83
  5. Step 5: Solve for x
    x = 1,309,188,221,722.83/1,301,780.80
  6. Step 6: Final answer
    x = 1,005,690.22

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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.