Home / 3,112,847.20-4,669,270.80-868,981.60

Finding the Fourth Proportional to 3,112,847.20, 4,669,270.80 and 868,981.60

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Solution

The fourth proportional to 3,112,847.20, 4,669,270.80 and 868,981.60 is: 1,303,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112,847.20 : 4,669,270.80 = 868,981.60 : x
  2. Step 2: Convert to fraction form
    3,112,847.20/4,669,270.80 = 868,981.60/x
  3. Step 3: Cross multiply
    3,112,847.20x = 4,669,270.80 × 868,981.60
  4. Step 4: Simplify right side
    3,112,847.20x = 4,057,510,410,617.28
  5. Step 5: Solve for x
    x = 4,057,510,410,617.28/3,112,847.20
  6. Step 6: Final answer
    x = 1,303,472.40

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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.