Home / 1,129,376.38-1,558,542.06-620,111.56

Finding the Fourth Proportional to 1,129,376.38, 1,558,542.06 and 620,111.56

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Solution

The fourth proportional to 1,129,376.38, 1,558,542.06 and 620,111.56 is: 855,755.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,376.38 : 1,558,542.06 = 620,111.56 : x
  2. Step 2: Convert to fraction form
    1,129,376.38/1,558,542.06 = 620,111.56/x
  3. Step 3: Cross multiply
    1,129,376.38x = 1,558,542.06 × 620,111.56
  4. Step 4: Simplify right side
    1,129,376.38x = 966,469,948,152.21
  5. Step 5: Solve for x
    x = 966,469,948,152.21/1,129,376.38
  6. Step 6: Final answer
    x = 855,755.41

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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.