Home / 1,203,201.81-1,660,255.99-686,922.87

Finding the Fourth Proportional to 1,203,201.81, 1,660,255.99 and 686,922.87

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Solution

The fourth proportional to 1,203,201.81, 1,660,255.99 and 686,922.87 is: 947,860.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,201.81 : 1,660,255.99 = 686,922.87 : x
  2. Step 2: Convert to fraction form
    1,203,201.81/1,660,255.99 = 686,922.87/x
  3. Step 3: Cross multiply
    1,203,201.81x = 1,660,255.99 × 686,922.87
  4. Step 4: Simplify right side
    1,203,201.81x = 1,140,467,809,585.49
  5. Step 5: Solve for x
    x = 1,140,467,809,585.49/1,203,201.81
  6. Step 6: Final answer
    x = 947,860.78

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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.