Home / 1,379,187.11-2,068,759.89-620,492.81

Finding the Fourth Proportional to 1,379,187.11, 2,068,759.89 and 620,492.81

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Solution

The fourth proportional to 1,379,187.11, 2,068,759.89 and 620,492.81 is: 930,729.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,187.11 : 2,068,759.89 = 620,492.81 : x
  2. Step 2: Convert to fraction form
    1,379,187.11/2,068,759.89 = 620,492.81/x
  3. Step 3: Cross multiply
    1,379,187.11x = 2,068,759.89 × 620,492.81
  4. Step 4: Simplify right side
    1,379,187.11x = 1,283,650,627,017.59
  5. Step 5: Solve for x
    x = 1,283,650,627,017.59/1,379,187.11
  6. Step 6: Final answer
    x = 930,729.86

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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.