Home / 1,079,355.58-1,489,441.77-620,360.78

Finding the Fourth Proportional to 1,079,355.58, 1,489,441.77 and 620,360.78

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Solution

The fourth proportional to 1,079,355.58, 1,489,441.77 and 620,360.78 is: 856,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,355.58 : 1,489,441.77 = 620,360.78 : x
  2. Step 2: Convert to fraction form
    1,079,355.58/1,489,441.77 = 620,360.78/x
  3. Step 3: Cross multiply
    1,079,355.58x = 1,489,441.77 × 620,360.78
  4. Step 4: Simplify right side
    1,079,355.58x = 923,991,250,754.57
  5. Step 5: Solve for x
    x = 923,991,250,754.57/1,079,355.58
  6. Step 6: Final answer
    x = 856,058.25

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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.