Home / 3,216,563.20-4,824,844.80-820,403.20

Finding the Fourth Proportional to 3,216,563.20, 4,824,844.80 and 820,403.20

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Solution

The fourth proportional to 3,216,563.20, 4,824,844.80 and 820,403.20 is: 1,230,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216,563.20 : 4,824,844.80 = 820,403.20 : x
  2. Step 2: Convert to fraction form
    3,216,563.20/4,824,844.80 = 820,403.20/x
  3. Step 3: Cross multiply
    3,216,563.20x = 4,824,844.80 × 820,403.20
  4. Step 4: Simplify right side
    3,216,563.20x = 3,958,318,113,423.36
  5. Step 5: Solve for x
    x = 3,958,318,113,423.36/3,216,563.20
  6. Step 6: Final answer
    x = 1,230,604.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.