Home / 330,638.20-496,994.10-324,417.40

Finding the Fourth Proportional to 330,638.20, 496,994.10 and 324,417.40

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Solution

The fourth proportional to 330,638.20, 496,994.10 and 324,417.40 is: 487,643.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,638.20 : 496,994.10 = 324,417.40 : x
  2. Step 2: Convert to fraction form
    330,638.20/496,994.10 = 324,417.40/x
  3. Step 3: Cross multiply
    330,638.20x = 496,994.10 × 324,417.40
  4. Step 4: Simplify right side
    330,638.20x = 161,233,533,737.34
  5. Step 5: Solve for x
    x = 161,233,533,737.34/330,638.20
  6. Step 6: Final answer
    x = 487,643.39

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