Home / 3,638,408.39-5,456,431.64-1,208,909.19

Finding the Fourth Proportional to 3,638,408.39, 5,456,431.64 and 1,208,909.19

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Solution

The fourth proportional to 3,638,408.39, 5,456,431.64 and 1,208,909.19 is: 1,812,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638,408.39 : 5,456,431.64 = 1,208,909.19 : x
  2. Step 2: Convert to fraction form
    3,638,408.39/5,456,431.64 = 1,208,909.19/x
  3. Step 3: Cross multiply
    3,638,408.39x = 5,456,431.64 × 1,208,909.19
  4. Step 4: Simplify right side
    3,638,408.39x = 6,596,330,340,194.12
  5. Step 5: Solve for x
    x = 6,596,330,340,194.12/3,638,408.39
  6. Step 6: Final answer
    x = 1,812,971.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.