Home / 1,214,558.76-1,820,619-415,293.72

Finding the Fourth Proportional to 1,214,558.76, 1,820,619 and 415,293.72

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Solution

The fourth proportional to 1,214,558.76, 1,820,619 and 415,293.72 is: 622,523.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,558.76 : 1,820,619 = 415,293.72 : x
  2. Step 2: Convert to fraction form
    1,214,558.76/1,820,619 = 415,293.72/x
  3. Step 3: Cross multiply
    1,214,558.76x = 1,820,619 × 415,293.72
  4. Step 4: Simplify right side
    1,214,558.76x = 756,091,637,212.68
  5. Step 5: Solve for x
    x = 756,091,637,212.68/1,214,558.76
  6. Step 6: Final answer
    x = 622,523.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.