Home / 2,189,701.85-3,021,880.37-1,259,409.87

Finding the Fourth Proportional to 2,189,701.85, 3,021,880.37 and 1,259,409.87

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Solution

The fourth proportional to 2,189,701.85, 3,021,880.37 and 1,259,409.87 is: 1,738,038.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,701.85 : 3,021,880.37 = 1,259,409.87 : x
  2. Step 2: Convert to fraction form
    2,189,701.85/3,021,880.37 = 1,259,409.87/x
  3. Step 3: Cross multiply
    2,189,701.85x = 3,021,880.37 × 1,259,409.87
  4. Step 4: Simplify right side
    2,189,701.85x = 3,805,785,957,640.20
  5. Step 5: Solve for x
    x = 3,805,785,957,640.20/2,189,701.85
  6. Step 6: Final answer
    x = 1,738,038.43

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1.5x scale

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.