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Finding the Fourth Proportional to 472,421.28, 651,922.16 and 257,557.12

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Solution

The fourth proportional to 472,421.28, 651,922.16 and 257,557.12 is: 355,418.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,421.28 : 651,922.16 = 257,557.12 : x
  2. Step 2: Convert to fraction form
    472,421.28/651,922.16 = 257,557.12/x
  3. Step 3: Cross multiply
    472,421.28x = 651,922.16 × 257,557.12
  4. Step 4: Simplify right side
    472,421.28x = 167,907,193,993.78
  5. Step 5: Solve for x
    x = 167,907,193,993.78/472,421.28
  6. Step 6: Final answer
    x = 355,418.35

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