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Finding the Fourth Proportional to 496,385.20, 744,577.80 and 417,653.20

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Solution

The fourth proportional to 496,385.20, 744,577.80 and 417,653.20 is: 626,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,385.20 : 744,577.80 = 417,653.20 : x
  2. Step 2: Convert to fraction form
    496,385.20/744,577.80 = 417,653.20/x
  3. Step 3: Cross multiply
    496,385.20x = 744,577.80 × 417,653.20
  4. Step 4: Simplify right side
    496,385.20x = 310,975,300,818.96
  5. Step 5: Solve for x
    x = 310,975,300,818.96/496,385.20
  6. Step 6: Final answer
    x = 626,479.80

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