Home / 1,605,101.78-2,215,026.32-879,936.32

Finding the Fourth Proportional to 1,605,101.78, 2,215,026.32 and 879,936.32

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Solution

The fourth proportional to 1,605,101.78, 2,215,026.32 and 879,936.32 is: 1,214,304.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,101.78 : 2,215,026.32 = 879,936.32 : x
  2. Step 2: Convert to fraction form
    1,605,101.78/2,215,026.32 = 879,936.32/x
  3. Step 3: Cross multiply
    1,605,101.78x = 2,215,026.32 × 879,936.32
  4. Step 4: Simplify right side
    1,605,101.78x = 1,949,082,108,723.94
  5. Step 5: Solve for x
    x = 1,949,082,108,723.94/1,605,101.78
  6. Step 6: Final answer
    x = 1,214,304.37

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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.