Home / 1,556,138.56-2,147,469.42-840,746.56

Finding the Fourth Proportional to 1,556,138.56, 2,147,469.42 and 840,746.56

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Solution

The fourth proportional to 1,556,138.56, 2,147,469.42 and 840,746.56 is: 1,160,229.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,138.56 : 2,147,469.42 = 840,746.56 : x
  2. Step 2: Convert to fraction form
    1,556,138.56/2,147,469.42 = 840,746.56/x
  3. Step 3: Cross multiply
    1,556,138.56x = 2,147,469.42 × 840,746.56
  4. Step 4: Simplify right side
    1,556,138.56x = 1,805,477,527,570.20
  5. Step 5: Solve for x
    x = 1,805,477,527,570.20/1,556,138.56
  6. Step 6: Final answer
    x = 1,160,229.28

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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.