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Finding the Fourth Proportional to 647,855.20, 972,220.20 and 363,545.20

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Solution

The fourth proportional to 647,855.20, 972,220.20 and 363,545.20 is: 545,563.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,855.20 : 972,220.20 = 363,545.20 : x
  2. Step 2: Convert to fraction form
    647,855.20/972,220.20 = 363,545.20/x
  3. Step 3: Cross multiply
    647,855.20x = 972,220.20 × 363,545.20
  4. Step 4: Simplify right side
    647,855.20x = 353,445,987,053.04
  5. Step 5: Solve for x
    x = 353,445,987,053.04/647,855.20
  6. Step 6: Final answer
    x = 545,563.25

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