Home / 728,388.69-1,092,897.75-391,035.39

Finding the Fourth Proportional to 728,388.69, 1,092,897.75 and 391,035.39

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Solution

The fourth proportional to 728,388.69, 1,092,897.75 and 391,035.39 is: 586,722.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,388.69 : 1,092,897.75 = 391,035.39 : x
  2. Step 2: Convert to fraction form
    728,388.69/1,092,897.75 = 391,035.39/x
  3. Step 3: Cross multiply
    728,388.69x = 1,092,897.75 × 391,035.39
  4. Step 4: Simplify right side
    728,388.69x = 427,361,697,901.37
  5. Step 5: Solve for x
    x = 427,361,697,901.37/728,388.69
  6. Step 6: Final answer
    x = 586,722.04

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