Home / 1,581,085.80-2,181,880.26-855,917.55

Finding the Fourth Proportional to 1,581,085.80, 2,181,880.26 and 855,917.55

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Solution

The fourth proportional to 1,581,085.80, 2,181,880.26 and 855,917.55 is: 1,181,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,085.80 : 2,181,880.26 = 855,917.55 : x
  2. Step 2: Convert to fraction form
    1,581,085.80/2,181,880.26 = 855,917.55/x
  3. Step 3: Cross multiply
    1,581,085.80x = 2,181,880.26 × 855,917.55
  4. Step 4: Simplify right side
    1,581,085.80x = 1,867,509,606,532.56
  5. Step 5: Solve for x
    x = 1,867,509,606,532.56/1,581,085.80
  6. Step 6: Final answer
    x = 1,181,156.40

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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.