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Finding the Fourth Proportional to 2,800,224, 4,200,336 and 805,680

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Solution

The fourth proportional to 2,800,224, 4,200,336 and 805,680 is: 1,208,520

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,224 : 4,200,336 = 805,680 : x
  2. Step 2: Convert to fraction form
    2,800,224/4,200,336 = 805,680/x
  3. Step 3: Cross multiply
    2,800,224x = 4,200,336 × 805,680
  4. Step 4: Simplify right side
    2,800,224x = 3,384,126,708,480
  5. Step 5: Solve for x
    x = 3,384,126,708,480/2,800,224
  6. Step 6: Final answer
    x = 1,208,520

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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.