Home / 1,112,165.40-1,534,776.75-622,128.54

Finding the Fourth Proportional to 1,112,165.40, 1,534,776.75 and 622,128.54

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Solution

The fourth proportional to 1,112,165.40, 1,534,776.75 and 622,128.54 is: 858,530.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,165.40 : 1,534,776.75 = 622,128.54 : x
  2. Step 2: Convert to fraction form
    1,112,165.40/1,534,776.75 = 622,128.54/x
  3. Step 3: Cross multiply
    1,112,165.40x = 1,534,776.75 × 622,128.54
  4. Step 4: Simplify right side
    1,112,165.40x = 954,828,418,703.45
  5. Step 5: Solve for x
    x = 954,828,418,703.45/1,112,165.40
  6. Step 6: Final answer
    x = 858,530.95

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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.