Home / 1,011,074.82-1,515,723.63-412,539.90

Finding the Fourth Proportional to 1,011,074.82, 1,515,723.63 and 412,539.90

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Solution

The fourth proportional to 1,011,074.82, 1,515,723.63 and 412,539.90 is: 618,447.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,074.82 : 1,515,723.63 = 412,539.90 : x
  2. Step 2: Convert to fraction form
    1,011,074.82/1,515,723.63 = 412,539.90/x
  3. Step 3: Cross multiply
    1,011,074.82x = 1,515,723.63 × 412,539.90
  4. Step 4: Simplify right side
    1,011,074.82x = 625,296,474,747.84
  5. Step 5: Solve for x
    x = 625,296,474,747.84/1,011,074.82
  6. Step 6: Final answer
    x = 618,447.28

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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.