Home / 2,172,617.40-2,999,673.90-1,662,408.12

Finding the Fourth Proportional to 2,172,617.40, 2,999,673.90 and 1,662,408.12

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Solution

The fourth proportional to 2,172,617.40, 2,999,673.90 and 1,662,408.12 is: 2,295,241.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,617.40 : 2,999,673.90 = 1,662,408.12 : x
  2. Step 2: Convert to fraction form
    2,172,617.40/2,999,673.90 = 1,662,408.12/x
  3. Step 3: Cross multiply
    2,172,617.40x = 2,999,673.90 × 1,662,408.12
  4. Step 4: Simplify right side
    2,172,617.40x = 4,986,682,248,712.07
  5. Step 5: Solve for x
    x = 4,986,682,248,712.07/2,172,617.40
  6. Step 6: Final answer
    x = 2,295,241.79

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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.