Home / 1,419,309.90-2,128,995.09-508,551.85

Finding the Fourth Proportional to 1,419,309.90, 2,128,995.09 and 508,551.85

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Solution

The fourth proportional to 1,419,309.90, 2,128,995.09 and 508,551.85 is: 762,838.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,309.90 : 2,128,995.09 = 508,551.85 : x
  2. Step 2: Convert to fraction form
    1,419,309.90/2,128,995.09 = 508,551.85/x
  3. Step 3: Cross multiply
    1,419,309.90x = 2,128,995.09 × 508,551.85
  4. Step 4: Simplify right side
    1,419,309.90x = 1,082,704,391,660.42
  5. Step 5: Solve for x
    x = 1,082,704,391,660.42/1,419,309.90
  6. Step 6: Final answer
    x = 762,838.61

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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.