Home / 1,398,628.30-2,094,832.05-1,212,004.30

Finding the Fourth Proportional to 1,398,628.30, 2,094,832.05 and 1,212,004.30

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Solution

The fourth proportional to 1,398,628.30, 2,094,832.05 and 1,212,004.30 is: 1,815,311.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,628.30 : 2,094,832.05 = 1,212,004.30 : x
  2. Step 2: Convert to fraction form
    1,398,628.30/2,094,832.05 = 1,212,004.30/x
  3. Step 3: Cross multiply
    1,398,628.30x = 2,094,832.05 × 1,212,004.30
  4. Step 4: Simplify right side
    1,398,628.30x = 2,538,945,452,377.82
  5. Step 5: Solve for x
    x = 2,538,945,452,377.82/1,398,628.30
  6. Step 6: Final answer
    x = 1,815,311.08

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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.