Home / 1,398,600.94-1,930,013.22-786,765.82

Finding the Fourth Proportional to 1,398,600.94, 1,930,013.22 and 786,765.82

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Solution

The fourth proportional to 1,398,600.94, 1,930,013.22 and 786,765.82 is: 1,085,705.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,600.94 : 1,930,013.22 = 786,765.82 : x
  2. Step 2: Convert to fraction form
    1,398,600.94/1,930,013.22 = 786,765.82/x
  3. Step 3: Cross multiply
    1,398,600.94x = 1,930,013.22 × 786,765.82
  4. Step 4: Simplify right side
    1,398,600.94x = 1,518,468,433,644.14
  5. Step 5: Solve for x
    x = 1,518,468,433,644.14/1,398,600.94
  6. Step 6: Final answer
    x = 1,085,705.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.