Home / 1,129,376.37-1,558,542.06-620,111.55

Finding the Fourth Proportional to 1,129,376.37, 1,558,542.06 and 620,111.55

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Solution

The fourth proportional to 1,129,376.37, 1,558,542.06 and 620,111.55 is: 855,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,376.37 : 1,558,542.06 = 620,111.55 : x
  2. Step 2: Convert to fraction form
    1,129,376.37/1,558,542.06 = 620,111.55/x
  3. Step 3: Cross multiply
    1,129,376.37x = 1,558,542.06 × 620,111.55
  4. Step 4: Simplify right side
    1,129,376.37x = 966,469,932,566.79
  5. Step 5: Solve for x
    x = 966,469,932,566.79/1,129,376.37
  6. Step 6: Final answer
    x = 855,755.40

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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.