Home / 855,422.87-1,180,403.42-511,190.26

Finding the Fourth Proportional to 855,422.87, 1,180,403.42 and 511,190.26

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Solution

The fourth proportional to 855,422.87, 1,180,403.42 and 511,190.26 is: 705,394.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,422.87 : 1,180,403.42 = 511,190.26 : x
  2. Step 2: Convert to fraction form
    855,422.87/1,180,403.42 = 511,190.26/x
  3. Step 3: Cross multiply
    855,422.87x = 1,180,403.42 × 511,190.26
  4. Step 4: Simplify right side
    855,422.87x = 603,410,725,667.73
  5. Step 5: Solve for x
    x = 603,410,725,667.73/855,422.87
  6. Step 6: Final answer
    x = 705,394.67

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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.