Home / 1,219,383.42-1,683,029.01-811,502.44

Finding the Fourth Proportional to 1,219,383.42, 1,683,029.01 and 811,502.44

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Solution

The fourth proportional to 1,219,383.42, 1,683,029.01 and 811,502.44 is: 1,120,059.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,383.42 : 1,683,029.01 = 811,502.44 : x
  2. Step 2: Convert to fraction form
    1,219,383.42/1,683,029.01 = 811,502.44/x
  3. Step 3: Cross multiply
    1,219,383.42x = 1,683,029.01 × 811,502.44
  4. Step 4: Simplify right side
    1,219,383.42x = 1,365,782,148,205.78
  5. Step 5: Solve for x
    x = 1,365,782,148,205.78/1,219,383.42
  6. Step 6: Final answer
    x = 1,120,059.63

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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.