Home / 1,380,122.82-2,070,378.63-481,433.49

Finding the Fourth Proportional to 1,380,122.82, 2,070,378.63 and 481,433.49

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Solution

The fourth proportional to 1,380,122.82, 2,070,378.63 and 481,433.49 is: 722,218.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,122.82 : 2,070,378.63 = 481,433.49 : x
  2. Step 2: Convert to fraction form
    1,380,122.82/2,070,378.63 = 481,433.49/x
  3. Step 3: Cross multiply
    1,380,122.82x = 2,070,378.63 × 481,433.49
  4. Step 4: Simplify right side
    1,380,122.82x = 996,749,609,462.32
  5. Step 5: Solve for x
    x = 996,749,609,462.32/1,380,122.82
  6. Step 6: Final answer
    x = 722,218.05

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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.