Home / 1,239,185.39-1,857,499.29-519,944.81

Finding the Fourth Proportional to 1,239,185.39, 1,857,499.29 and 519,944.81

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Solution

The fourth proportional to 1,239,185.39, 1,857,499.29 and 519,944.81 is: 779,380.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,185.39 : 1,857,499.29 = 519,944.81 : x
  2. Step 2: Convert to fraction form
    1,239,185.39/1,857,499.29 = 519,944.81/x
  3. Step 3: Cross multiply
    1,239,185.39x = 1,857,499.29 × 519,944.81
  4. Step 4: Simplify right side
    1,239,185.39x = 965,797,106,126.69
  5. Step 5: Solve for x
    x = 965,797,106,126.69/1,239,185.39
  6. Step 6: Final answer
    x = 779,380.65

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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.