Home / 1,113,942.78-1,670,478.30-394,006.29

Finding the Fourth Proportional to 1,113,942.78, 1,670,478.30 and 394,006.29

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Solution

The fourth proportional to 1,113,942.78, 1,670,478.30 and 394,006.29 is: 590,855.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,942.78 : 1,670,478.30 = 394,006.29 : x
  2. Step 2: Convert to fraction form
    1,113,942.78/1,670,478.30 = 394,006.29/x
  3. Step 3: Cross multiply
    1,113,942.78x = 1,670,478.30 × 394,006.29
  4. Step 4: Simplify right side
    1,113,942.78x = 658,178,957,508.51
  5. Step 5: Solve for x
    x = 658,178,957,508.51/1,113,942.78
  6. Step 6: Final answer
    x = 590,855.27

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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.