Home / 831,814.78-1,247,943.22-263,205.98

Finding the Fourth Proportional to 831,814.78, 1,247,943.22 and 263,205.98

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Solution

The fourth proportional to 831,814.78, 1,247,943.22 and 263,205.98 is: 394,878.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,814.78 : 1,247,943.22 = 263,205.98 : x
  2. Step 2: Convert to fraction form
    831,814.78/1,247,943.22 = 263,205.98/x
  3. Step 3: Cross multiply
    831,814.78x = 1,247,943.22 × 263,205.98
  4. Step 4: Simplify right side
    831,814.78x = 328,466,118,204.46
  5. Step 5: Solve for x
    x = 328,466,118,204.46/831,814.78
  6. Step 6: Final answer
    x = 394,878.92

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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.