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Finding the Fourth Proportional to 518,515.20, 777,772.80 and 483,085.80

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Solution

The fourth proportional to 518,515.20, 777,772.80 and 483,085.80 is: 724,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,515.20 : 777,772.80 = 483,085.80 : x
  2. Step 2: Convert to fraction form
    518,515.20/777,772.80 = 483,085.80/x
  3. Step 3: Cross multiply
    518,515.20x = 777,772.80 × 483,085.80
  4. Step 4: Simplify right side
    518,515.20x = 375,730,995,306.24
  5. Step 5: Solve for x
    x = 375,730,995,306.24/518,515.20
  6. Step 6: Final answer
    x = 724,628.70

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