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Finding the Fourth Proportional to 496,280.80, 744,421.20 and 472,952.80

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Solution

The fourth proportional to 496,280.80, 744,421.20 and 472,952.80 is: 709,429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,280.80 : 744,421.20 = 472,952.80 : x
  2. Step 2: Convert to fraction form
    496,280.80/744,421.20 = 472,952.80/x
  3. Step 3: Cross multiply
    496,280.80x = 744,421.20 × 472,952.80
  4. Step 4: Simplify right side
    496,280.80x = 352,076,090,919.36
  5. Step 5: Solve for x
    x = 352,076,090,919.36/496,280.80
  6. Step 6: Final answer
    x = 709,429.20

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