Home / 1,288,305.10-1,923,782.11-1,052,116.30

Finding the Fourth Proportional to 1,288,305.10, 1,923,782.11 and 1,052,116.30

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Solution

The fourth proportional to 1,288,305.10, 1,923,782.11 and 1,052,116.30 is: 1,571,089.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,305.10 : 1,923,782.11 = 1,052,116.30 : x
  2. Step 2: Convert to fraction form
    1,288,305.10/1,923,782.11 = 1,052,116.30/x
  3. Step 3: Cross multiply
    1,288,305.10x = 1,923,782.11 × 1,052,116.30
  4. Step 4: Simplify right side
    1,288,305.10x = 2,024,042,500,699.90
  5. Step 5: Solve for x
    x = 2,024,042,500,699.90/1,288,305.10
  6. Step 6: Final answer
    x = 1,571,089.42

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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.