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Finding the Fourth Proportional to 487,602.40, 731,403.60 and 404,658.40

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Solution

The fourth proportional to 487,602.40, 731,403.60 and 404,658.40 is: 606,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,602.40 : 731,403.60 = 404,658.40 : x
  2. Step 2: Convert to fraction form
    487,602.40/731,403.60 = 404,658.40/x
  3. Step 3: Cross multiply
    487,602.40x = 731,403.60 × 404,658.40
  4. Step 4: Simplify right side
    487,602.40x = 295,968,610,530.24
  5. Step 5: Solve for x
    x = 295,968,610,530.24/487,602.40
  6. Step 6: Final answer
    x = 606,987.60

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