Home / 1,219,297.78-1,682,612.76-675,431.92

Finding the Fourth Proportional to 1,219,297.78, 1,682,612.76 and 675,431.92

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Solution

The fourth proportional to 1,219,297.78, 1,682,612.76 and 675,431.92 is: 932,085.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,297.78 : 1,682,612.76 = 675,431.92 : x
  2. Step 2: Convert to fraction form
    1,219,297.78/1,682,612.76 = 675,431.92/x
  3. Step 3: Cross multiply
    1,219,297.78x = 1,682,612.76 × 675,431.92
  4. Step 4: Simplify right side
    1,219,297.78x = 1,136,490,367,103.30
  5. Step 5: Solve for x
    x = 1,136,490,367,103.30/1,219,297.78
  6. Step 6: Final answer
    x = 932,085.98

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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.