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Finding the Fourth Proportional to 461,716.80, 692,575.20 and 406,420.80

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Solution

The fourth proportional to 461,716.80, 692,575.20 and 406,420.80 is: 609,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,716.80 : 692,575.20 = 406,420.80 : x
  2. Step 2: Convert to fraction form
    461,716.80/692,575.20 = 406,420.80/x
  3. Step 3: Cross multiply
    461,716.80x = 692,575.20 × 406,420.80
  4. Step 4: Simplify right side
    461,716.80x = 281,476,966,844.16
  5. Step 5: Solve for x
    x = 281,476,966,844.16/461,716.80
  6. Step 6: Final answer
    x = 609,631.20

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