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Finding the Fourth Proportional to 413,713.20, 620,569.80 and 147,482.40

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Solution

The fourth proportional to 413,713.20, 620,569.80 and 147,482.40 is: 221,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,713.20 : 620,569.80 = 147,482.40 : x
  2. Step 2: Convert to fraction form
    413,713.20/620,569.80 = 147,482.40/x
  3. Step 3: Cross multiply
    413,713.20x = 620,569.80 × 147,482.40
  4. Step 4: Simplify right side
    413,713.20x = 91,523,123,471.52
  5. Step 5: Solve for x
    x = 91,523,123,471.52/413,713.20
  6. Step 6: Final answer
    x = 221,223.60

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