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Finding the Fourth Proportional to 495,435.20, 743,152.80 and 121,458.20

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Solution

The fourth proportional to 495,435.20, 743,152.80 and 121,458.20 is: 182,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,435.20 : 743,152.80 = 121,458.20 : x
  2. Step 2: Convert to fraction form
    495,435.20/743,152.80 = 121,458.20/x
  3. Step 3: Cross multiply
    495,435.20x = 743,152.80 × 121,458.20
  4. Step 4: Simplify right side
    495,435.20x = 90,262,001,412.96
  5. Step 5: Solve for x
    x = 90,262,001,412.96/495,435.20
  6. Step 6: Final answer
    x = 182,187.30

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