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Finding the Fourth Proportional to 3,280,662.80, 4,920,994.20 and 2,824,017.20

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Solution

The fourth proportional to 3,280,662.80, 4,920,994.20 and 2,824,017.20 is: 4,236,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,662.80 : 4,920,994.20 = 2,824,017.20 : x
  2. Step 2: Convert to fraction form
    3,280,662.80/4,920,994.20 = 2,824,017.20/x
  3. Step 3: Cross multiply
    3,280,662.80x = 4,920,994.20 × 2,824,017.20
  4. Step 4: Simplify right side
    3,280,662.80x = 13,896,972,261,900.24
  5. Step 5: Solve for x
    x = 13,896,972,261,900.24/3,280,662.80
  6. Step 6: Final answer
    x = 4,236,025.80

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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.