Home / 1,568,640.77-2,166,697.40-1,293,993.89

Finding the Fourth Proportional to 1,568,640.77, 2,166,697.40 and 1,293,993.89

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Solution

The fourth proportional to 1,568,640.77, 2,166,697.40 and 1,293,993.89 is: 1,787,339.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568,640.77 : 2,166,697.40 = 1,293,993.89 : x
  2. Step 2: Convert to fraction form
    1,568,640.77/2,166,697.40 = 1,293,993.89/x
  3. Step 3: Cross multiply
    1,568,640.77x = 2,166,697.40 × 1,293,993.89
  4. Step 4: Simplify right side
    1,568,640.77x = 2,803,693,201,273.10
  5. Step 5: Solve for x
    x = 2,803,693,201,273.10/1,568,640.77
  6. Step 6: Final answer
    x = 1,787,339.24

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Double scale
Find fourth proportional to 1,568,641.77, 2,166,698.78 and 1,293,994.89
Similar ratio
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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.