Home / 1,288,310.72-1,923,790.48-1,052,121.92

Finding the Fourth Proportional to 1,288,310.72, 1,923,790.48 and 1,052,121.92

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Solution

The fourth proportional to 1,288,310.72, 1,923,790.48 and 1,052,121.92 is: 1,571,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,310.72 : 1,923,790.48 = 1,052,121.92 : x
  2. Step 2: Convert to fraction form
    1,288,310.72/1,923,790.48 = 1,052,121.92/x
  3. Step 3: Cross multiply
    1,288,310.72x = 1,923,790.48 × 1,052,121.92
  4. Step 4: Simplify right side
    1,288,310.72x = 2,024,062,133,495.32
  5. Step 5: Solve for x
    x = 2,024,062,133,495.32/1,288,310.72
  6. Step 6: Final answer
    x = 1,571,097.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.