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Finding the Fourth Proportional to 565,512.02, 780,407.43 and 310,864.76

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Solution

The fourth proportional to 565,512.02, 780,407.43 and 310,864.76 is: 428,993.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,512.02 : 780,407.43 = 310,864.76 : x
  2. Step 2: Convert to fraction form
    565,512.02/780,407.43 = 310,864.76/x
  3. Step 3: Cross multiply
    565,512.02x = 780,407.43 × 310,864.76
  4. Step 4: Simplify right side
    565,512.02x = 242,601,168,429.17
  5. Step 5: Solve for x
    x = 242,601,168,429.17/565,512.02
  6. Step 6: Final answer
    x = 428,993.83

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