Home / 1,042,899.92-1,439,222.32-680,555.60

Finding the Fourth Proportional to 1,042,899.92, 1,439,222.32 and 680,555.60

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Solution

The fourth proportional to 1,042,899.92, 1,439,222.32 and 680,555.60 is: 939,180.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,899.92 : 1,439,222.32 = 680,555.60 : x
  2. Step 2: Convert to fraction form
    1,042,899.92/1,439,222.32 = 680,555.60/x
  3. Step 3: Cross multiply
    1,042,899.92x = 1,439,222.32 × 680,555.60
  4. Step 4: Simplify right side
    1,042,899.92x = 979,470,809,520.99
  5. Step 5: Solve for x
    x = 979,470,809,520.99/1,042,899.92
  6. Step 6: Final answer
    x = 939,180.06

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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.