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Finding the Fourth Proportional to 480,498.89, 662,929.98 and 308,513.21

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Solution

The fourth proportional to 480,498.89, 662,929.98 and 308,513.21 is: 425,646.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,498.89 : 662,929.98 = 308,513.21 : x
  2. Step 2: Convert to fraction form
    480,498.89/662,929.98 = 308,513.21/x
  3. Step 3: Cross multiply
    480,498.89x = 662,929.98 × 308,513.21
  4. Step 4: Simplify right side
    480,498.89x = 204,522,652,820.39
  5. Step 5: Solve for x
    x = 204,522,652,820.39/480,498.89
  6. Step 6: Final answer
    x = 425,646.47

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