Home / 1,118,015.74-1,542,828-621,297.94

Finding the Fourth Proportional to 1,118,015.74, 1,542,828 and 621,297.94

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Solution

The fourth proportional to 1,118,015.74, 1,542,828 and 621,297.94 is: 857,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,015.74 : 1,542,828 = 621,297.94 : x
  2. Step 2: Convert to fraction form
    1,118,015.74/1,542,828 = 621,297.94/x
  3. Step 3: Cross multiply
    1,118,015.74x = 1,542,828 × 621,297.94
  4. Step 4: Simplify right side
    1,118,015.74x = 958,555,858,174.32
  5. Step 5: Solve for x
    x = 958,555,858,174.32/1,118,015.74
  6. Step 6: Final answer
    x = 857,372.42

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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.