Home / 1,224,889.12-1,690,819.68-816,843.52

Finding the Fourth Proportional to 1,224,889.12, 1,690,819.68 and 816,843.52

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Solution

The fourth proportional to 1,224,889.12, 1,690,819.68 and 816,843.52 is: 1,127,559.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,889.12 : 1,690,819.68 = 816,843.52 : x
  2. Step 2: Convert to fraction form
    1,224,889.12/1,690,819.68 = 816,843.52/x
  3. Step 3: Cross multiply
    1,224,889.12x = 1,690,819.68 × 816,843.52
  4. Step 4: Simplify right side
    1,224,889.12x = 1,381,135,099,096.47
  5. Step 5: Solve for x
    x = 1,381,135,099,096.47/1,224,889.12
  6. Step 6: Final answer
    x = 1,127,559.28

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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.