Home / 1,138,753.72-1,571,480.48-622,509.87

Finding the Fourth Proportional to 1,138,753.72, 1,571,480.48 and 622,509.87

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Solution

The fourth proportional to 1,138,753.72, 1,571,480.48 and 622,509.87 is: 859,063.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,753.72 : 1,571,480.48 = 622,509.87 : x
  2. Step 2: Convert to fraction form
    1,138,753.72/1,571,480.48 = 622,509.87/x
  3. Step 3: Cross multiply
    1,138,753.72x = 1,571,480.48 × 622,509.87
  4. Step 4: Simplify right side
    1,138,753.72x = 978,262,106,199.79
  5. Step 5: Solve for x
    x = 978,262,106,199.79/1,138,753.72
  6. Step 6: Final answer
    x = 859,063.81

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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.