Home / 1,256,321.80-1,885,065.90-657,958.60

Finding the Fourth Proportional to 1,256,321.80, 1,885,065.90 and 657,958.60

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Solution

The fourth proportional to 1,256,321.80, 1,885,065.90 and 657,958.60 is: 987,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,321.80 : 1,885,065.90 = 657,958.60 : x
  2. Step 2: Convert to fraction form
    1,256,321.80/1,885,065.90 = 657,958.60/x
  3. Step 3: Cross multiply
    1,256,321.80x = 1,885,065.90 × 657,958.60
  4. Step 4: Simplify right side
    1,256,321.80x = 1,240,295,320,471.74
  5. Step 5: Solve for x
    x = 1,240,295,320,471.74/1,256,321.80
  6. Step 6: Final answer
    x = 987,243.33

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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.