Home / 1,311,830.32-1,967,745.84-1,012,747.48

Finding the Fourth Proportional to 1,311,830.32, 1,967,745.84 and 1,012,747.48

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Solution

The fourth proportional to 1,311,830.32, 1,967,745.84 and 1,012,747.48 is: 1,519,121.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,830.32 : 1,967,745.84 = 1,012,747.48 : x
  2. Step 2: Convert to fraction form
    1,311,830.32/1,967,745.84 = 1,012,747.48/x
  3. Step 3: Cross multiply
    1,311,830.32x = 1,967,745.84 × 1,012,747.48
  4. Step 4: Simplify right side
    1,311,830.32x = 1,992,829,640,740.48
  5. Step 5: Solve for x
    x = 1,992,829,640,740.48/1,311,830.32
  6. Step 6: Final answer
    x = 1,519,121.50

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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.