Home / 1,253,458.70-1,738,622.63-1,220,235.69

Finding the Fourth Proportional to 1,253,458.70, 1,738,622.63 and 1,220,235.69

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Solution

The fourth proportional to 1,253,458.70, 1,738,622.63 and 1,220,235.69 is: 1,692,540.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,458.70 : 1,738,622.63 = 1,220,235.69 : x
  2. Step 2: Convert to fraction form
    1,253,458.70/1,738,622.63 = 1,220,235.69/x
  3. Step 3: Cross multiply
    1,253,458.70x = 1,738,622.63 × 1,220,235.69
  4. Step 4: Simplify right side
    1,253,458.70x = 2,121,529,377,494.51
  5. Step 5: Solve for x
    x = 2,121,529,377,494.51/1,253,458.70
  6. Step 6: Final answer
    x = 1,692,540.31

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.