Home / 1,382,312.90-1,907,360.60-770,331.54

Finding the Fourth Proportional to 1,382,312.90, 1,907,360.60 and 770,331.54

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Solution

The fourth proportional to 1,382,312.90, 1,907,360.60 and 770,331.54 is: 1,062,928.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,312.90 : 1,907,360.60 = 770,331.54 : x
  2. Step 2: Convert to fraction form
    1,382,312.90/1,907,360.60 = 770,331.54/x
  3. Step 3: Cross multiply
    1,382,312.90x = 1,907,360.60 × 770,331.54
  4. Step 4: Simplify right side
    1,382,312.90x = 1,469,300,028,333.32
  5. Step 5: Solve for x
    x = 1,469,300,028,333.32/1,382,312.90
  6. Step 6: Final answer
    x = 1,062,928.68

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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.