Home / 728,115.84-1,004,804.52-405,846.37

Finding the Fourth Proportional to 728,115.84, 1,004,804.52 and 405,846.37

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Solution

The fourth proportional to 728,115.84, 1,004,804.52 and 405,846.37 is: 560,070.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,115.84 : 1,004,804.52 = 405,846.37 : x
  2. Step 2: Convert to fraction form
    728,115.84/1,004,804.52 = 405,846.37/x
  3. Step 3: Cross multiply
    728,115.84x = 1,004,804.52 × 405,846.37
  4. Step 4: Simplify right side
    728,115.84x = 407,796,267,001.59
  5. Step 5: Solve for x
    x = 407,796,267,001.59/728,115.84
  6. Step 6: Final answer
    x = 560,070.59

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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.