Home / 747,439.20-1,121,508.72-326,660.40

Finding the Fourth Proportional to 747,439.20, 1,121,508.72 and 326,660.40

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Solution

The fourth proportional to 747,439.20, 1,121,508.72 and 326,660.40 is: 490,143.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,439.20 : 1,121,508.72 = 326,660.40 : x
  2. Step 2: Convert to fraction form
    747,439.20/1,121,508.72 = 326,660.40/x
  3. Step 3: Cross multiply
    747,439.20x = 1,121,508.72 × 326,660.40
  4. Step 4: Simplify right side
    747,439.20x = 366,352,487,078.69
  5. Step 5: Solve for x
    x = 366,352,487,078.69/747,439.20
  6. Step 6: Final answer
    x = 490,143.53

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