Home / 1,129,376.44-1,558,542.54-620,111.80

Finding the Fourth Proportional to 1,129,376.44, 1,558,542.54 and 620,111.80

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Solution

The fourth proportional to 1,129,376.44, 1,558,542.54 and 620,111.80 is: 855,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,376.44 : 1,558,542.54 = 620,111.80 : x
  2. Step 2: Convert to fraction form
    1,129,376.44/1,558,542.54 = 620,111.80/x
  3. Step 3: Cross multiply
    1,129,376.44x = 1,558,542.54 × 620,111.80
  4. Step 4: Simplify right side
    1,129,376.44x = 966,470,619,855.97
  5. Step 5: Solve for x
    x = 966,470,619,855.97/1,129,376.44
  6. Step 6: Final answer
    x = 855,755.96

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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.