Home / 1,219,262.89-1,821,478.60-789,295.96

Finding the Fourth Proportional to 1,219,262.89, 1,821,478.60 and 789,295.96

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Solution

The fourth proportional to 1,219,262.89, 1,821,478.60 and 789,295.96 is: 1,179,143.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,262.89 : 1,821,478.60 = 789,295.96 : x
  2. Step 2: Convert to fraction form
    1,219,262.89/1,821,478.60 = 789,295.96/x
  3. Step 3: Cross multiply
    1,219,262.89x = 1,821,478.60 × 789,295.96
  4. Step 4: Simplify right side
    1,219,262.89x = 1,437,685,700,206.46
  5. Step 5: Solve for x
    x = 1,437,685,700,206.46/1,219,262.89
  6. Step 6: Final answer
    x = 1,179,143.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.