Home / 1,421,603.57-1,961,540.77-809,742.93

Finding the Fourth Proportional to 1,421,603.57, 1,961,540.77 and 809,742.93

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Solution

The fourth proportional to 1,421,603.57, 1,961,540.77 and 809,742.93 is: 1,117,290.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,603.57 : 1,961,540.77 = 809,742.93 : x
  2. Step 2: Convert to fraction form
    1,421,603.57/1,961,540.77 = 809,742.93/x
  3. Step 3: Cross multiply
    1,421,603.57x = 1,961,540.77 × 809,742.93
  4. Step 4: Simplify right side
    1,421,603.57x = 1,588,343,770,414.26
  5. Step 5: Solve for x
    x = 1,588,343,770,414.26/1,421,603.57
  6. Step 6: Final answer
    x = 1,117,290.22

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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.