Home / 1,238,603.54-1,857,459.47-428,767.97

Finding the Fourth Proportional to 1,238,603.54, 1,857,459.47 and 428,767.97

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Solution

The fourth proportional to 1,238,603.54, 1,857,459.47 and 428,767.97 is: 642,997.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,603.54 : 1,857,459.47 = 428,767.97 : x
  2. Step 2: Convert to fraction form
    1,238,603.54/1,857,459.47 = 428,767.97/x
  3. Step 3: Cross multiply
    1,238,603.54x = 1,857,459.47 × 428,767.97
  4. Step 4: Simplify right side
    1,238,603.54x = 796,419,114,878.04
  5. Step 5: Solve for x
    x = 796,419,114,878.04/1,238,603.54
  6. Step 6: Final answer
    x = 642,997.61

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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.