Home / 1,535,406.39-2,118,175.67-890,452.80

Finding the Fourth Proportional to 1,535,406.39, 2,118,175.67 and 890,452.80

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Solution

The fourth proportional to 1,535,406.39, 2,118,175.67 and 890,452.80 is: 1,228,427.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535,406.39 : 2,118,175.67 = 890,452.80 : x
  2. Step 2: Convert to fraction form
    1,535,406.39/2,118,175.67 = 890,452.80/x
  3. Step 3: Cross multiply
    1,535,406.39x = 2,118,175.67 × 890,452.80
  4. Step 4: Simplify right side
    1,535,406.39x = 1,886,135,458,469.51
  5. Step 5: Solve for x
    x = 1,886,135,458,469.51/1,535,406.39
  6. Step 6: Final answer
    x = 1,228,427.52

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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.