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Finding the Fourth Proportional to 664,509.78, 917,023.50 and 362,703.78

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Solution

The fourth proportional to 664,509.78, 917,023.50 and 362,703.78 is: 500,531.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,509.78 : 917,023.50 = 362,703.78 : x
  2. Step 2: Convert to fraction form
    664,509.78/917,023.50 = 362,703.78/x
  3. Step 3: Cross multiply
    664,509.78x = 917,023.50 × 362,703.78
  4. Step 4: Simplify right side
    664,509.78x = 332,607,889,798.83
  5. Step 5: Solve for x
    x = 332,607,889,798.83/664,509.78
  6. Step 6: Final answer
    x = 500,531.22

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