Home / 1,188,832.98-1,640,592.66-644,968.76

Finding the Fourth Proportional to 1,188,832.98, 1,640,592.66 and 644,968.76

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Solution

The fourth proportional to 1,188,832.98, 1,640,592.66 and 644,968.76 is: 890,058.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,832.98 : 1,640,592.66 = 644,968.76 : x
  2. Step 2: Convert to fraction form
    1,188,832.98/1,640,592.66 = 644,968.76/x
  3. Step 3: Cross multiply
    1,188,832.98x = 1,640,592.66 × 644,968.76
  4. Step 4: Simplify right side
    1,188,832.98x = 1,058,131,007,800.97
  5. Step 5: Solve for x
    x = 1,058,131,007,800.97/1,188,832.98
  6. Step 6: Final answer
    x = 890,058.59

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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.