Home / 2,143,077.72-3,214,538.58-864,236.76

Finding the Fourth Proportional to 2,143,077.72, 3,214,538.58 and 864,236.76

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Solution

The fourth proportional to 2,143,077.72, 3,214,538.58 and 864,236.76 is: 1,296,323.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,077.72 : 3,214,538.58 = 864,236.76 : x
  2. Step 2: Convert to fraction form
    2,143,077.72/3,214,538.58 = 864,236.76/x
  3. Step 3: Cross multiply
    2,143,077.72x = 3,214,538.58 × 864,236.76
  4. Step 4: Simplify right side
    2,143,077.72x = 2,778,122,407,274.20
  5. Step 5: Solve for x
    x = 2,778,122,407,274.20/2,143,077.72
  6. Step 6: Final answer
    x = 1,296,323.69

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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.