Home / 1,258,991.85-1,888,485.41-394,492.95

Finding the Fourth Proportional to 1,258,991.85, 1,888,485.41 and 394,492.95

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Solution

The fourth proportional to 1,258,991.85, 1,888,485.41 and 394,492.95 is: 591,738.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,991.85 : 1,888,485.41 = 394,492.95 : x
  2. Step 2: Convert to fraction form
    1,258,991.85/1,888,485.41 = 394,492.95/x
  3. Step 3: Cross multiply
    1,258,991.85x = 1,888,485.41 × 394,492.95
  4. Step 4: Simplify right side
    1,258,991.85x = 744,994,174,327.27
  5. Step 5: Solve for x
    x = 744,994,174,327.27/1,258,991.85
  6. Step 6: Final answer
    x = 591,738.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.