Home / 1,412,946.64-1,949,880.20-768,380.76

Finding the Fourth Proportional to 1,412,946.64, 1,949,880.20 and 768,380.76

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Solution

The fourth proportional to 1,412,946.64, 1,949,880.20 and 768,380.76 is: 1,060,372.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,946.64 : 1,949,880.20 = 768,380.76 : x
  2. Step 2: Convert to fraction form
    1,412,946.64/1,949,880.20 = 768,380.76/x
  3. Step 3: Cross multiply
    1,412,946.64x = 1,949,880.20 × 768,380.76
  4. Step 4: Simplify right side
    1,412,946.64x = 1,498,250,429,984.95
  5. Step 5: Solve for x
    x = 1,498,250,429,984.95/1,412,946.64
  6. Step 6: Final answer
    x = 1,060,372.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.