Home / 1,456,125.45-2,183,669.78-657,789.45

Finding the Fourth Proportional to 1,456,125.45, 2,183,669.78 and 657,789.45

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Solution

The fourth proportional to 1,456,125.45, 2,183,669.78 and 657,789.45 is: 986,449.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,125.45 : 2,183,669.78 = 657,789.45 : x
  2. Step 2: Convert to fraction form
    1,456,125.45/2,183,669.78 = 657,789.45/x
  3. Step 3: Cross multiply
    1,456,125.45x = 2,183,669.78 × 657,789.45
  4. Step 4: Simplify right side
    1,456,125.45x = 1,436,394,940,278.87
  5. Step 5: Solve for x
    x = 1,436,394,940,278.87/1,456,125.45
  6. Step 6: Final answer
    x = 986,449.99

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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.