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Finding the Fourth Proportional to 717,859.23, 990,645.83 and 416,228.19

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Solution

The fourth proportional to 717,859.23, 990,645.83 and 416,228.19 is: 574,394.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,859.23 : 990,645.83 = 416,228.19 : x
  2. Step 2: Convert to fraction form
    717,859.23/990,645.83 = 416,228.19/x
  3. Step 3: Cross multiply
    717,859.23x = 990,645.83 × 416,228.19
  4. Step 4: Simplify right side
    717,859.23x = 412,334,720,751.95
  5. Step 5: Solve for x
    x = 412,334,720,751.95/717,859.23
  6. Step 6: Final answer
    x = 574,394.96

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