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Finding the Fourth Proportional to 652,092.80, 978,430.80 and 315,003.20

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Solution

The fourth proportional to 652,092.80, 978,430.80 and 315,003.20 is: 472,645.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,092.80 : 978,430.80 = 315,003.20 : x
  2. Step 2: Convert to fraction form
    652,092.80/978,430.80 = 315,003.20/x
  3. Step 3: Cross multiply
    652,092.80x = 978,430.80 × 315,003.20
  4. Step 4: Simplify right side
    652,092.80x = 308,208,832,978.56
  5. Step 5: Solve for x
    x = 308,208,832,978.56/652,092.80
  6. Step 6: Final answer
    x = 472,645.66

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