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Finding the Fourth Proportional to 472,592.80, 708,889.20 and 260,016.40

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Solution

The fourth proportional to 472,592.80, 708,889.20 and 260,016.40 is: 390,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,592.80 : 708,889.20 = 260,016.40 : x
  2. Step 2: Convert to fraction form
    472,592.80/708,889.20 = 260,016.40/x
  3. Step 3: Cross multiply
    472,592.80x = 708,889.20 × 260,016.40
  4. Step 4: Simplify right side
    472,592.80x = 184,322,817,782.88
  5. Step 5: Solve for x
    x = 184,322,817,782.88/472,592.80
  6. Step 6: Final answer
    x = 390,024.60

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