Home / 728,496.44-1,092,121.38-279,539.50

Finding the Fourth Proportional to 728,496.44, 1,092,121.38 and 279,539.50

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Solution

The fourth proportional to 728,496.44, 1,092,121.38 and 279,539.50 is: 419,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,496.44 : 1,092,121.38 = 279,539.50 : x
  2. Step 2: Convert to fraction form
    728,496.44/1,092,121.38 = 279,539.50/x
  3. Step 3: Cross multiply
    728,496.44x = 1,092,121.38 × 279,539.50
  4. Step 4: Simplify right side
    728,496.44x = 305,291,064,504.51
  5. Step 5: Solve for x
    x = 305,291,064,504.51/728,496.44
  6. Step 6: Final answer
    x = 419,070.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.