Home / 990,391.12-1,373,732.08-964,140.84

Finding the Fourth Proportional to 990,391.12, 1,373,732.08 and 964,140.84

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Solution

The fourth proportional to 990,391.12, 1,373,732.08 and 964,140.84 is: 1,337,321.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,391.12 : 1,373,732.08 = 964,140.84 : x
  2. Step 2: Convert to fraction form
    990,391.12/1,373,732.08 = 964,140.84/x
  3. Step 3: Cross multiply
    990,391.12x = 1,373,732.08 × 964,140.84
  4. Step 4: Simplify right side
    990,391.12x = 1,324,471,201,546.15
  5. Step 5: Solve for x
    x = 1,324,471,201,546.15/990,391.12
  6. Step 6: Final answer
    x = 1,337,321.36

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.