Home / 1,138,622.86-1,571,272.18-622,353.57

Finding the Fourth Proportional to 1,138,622.86, 1,571,272.18 and 622,353.57

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Solution

The fourth proportional to 1,138,622.86, 1,571,272.18 and 622,353.57 is: 858,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,622.86 : 1,571,272.18 = 622,353.57 : x
  2. Step 2: Convert to fraction form
    1,138,622.86/1,571,272.18 = 622,353.57/x
  3. Step 3: Cross multiply
    1,138,622.86x = 1,571,272.18 × 622,353.57
  4. Step 4: Simplify right side
    1,138,622.86x = 977,886,850,664.68
  5. Step 5: Solve for x
    x = 977,886,850,664.68/1,138,622.86
  6. Step 6: Final answer
    x = 858,832.97

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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.