Home / 1,790,708.85-2,686,168.47-511,218

Finding the Fourth Proportional to 1,790,708.85, 2,686,168.47 and 511,218

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Solution

The fourth proportional to 1,790,708.85, 2,686,168.47 and 511,218 is: 766,857.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790,708.85 : 2,686,168.47 = 511,218 : x
  2. Step 2: Convert to fraction form
    1,790,708.85/2,686,168.47 = 511,218/x
  3. Step 3: Cross multiply
    1,790,708.85x = 2,686,168.47 × 511,218
  4. Step 4: Simplify right side
    1,790,708.85x = 1,373,217,672,896.46
  5. Step 5: Solve for x
    x = 1,373,217,672,896.46/1,790,708.85
  6. Step 6: Final answer
    x = 766,857.03

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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.