Home / 1,122,511.14-1,683,766.71-412,231.86

Finding the Fourth Proportional to 1,122,511.14, 1,683,766.71 and 412,231.86

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Solution

The fourth proportional to 1,122,511.14, 1,683,766.71 and 412,231.86 is: 618,347.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,511.14 : 1,683,766.71 = 412,231.86 : x
  2. Step 2: Convert to fraction form
    1,122,511.14/1,683,766.71 = 412,231.86/x
  3. Step 3: Cross multiply
    1,122,511.14x = 1,683,766.71 × 412,231.86
  4. Step 4: Simplify right side
    1,122,511.14x = 694,102,282,669.38
  5. Step 5: Solve for x
    x = 694,102,282,669.38/1,122,511.14
  6. Step 6: Final answer
    x = 618,347.79

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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.