Home / 490,637.82-677,099.40-275,777.22

Finding the Fourth Proportional to 490,637.82, 677,099.40 and 275,777.22

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Solution

The fourth proportional to 490,637.82, 677,099.40 and 275,777.22 is: 380,583.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,637.82 : 677,099.40 = 275,777.22 : x
  2. Step 2: Convert to fraction form
    490,637.82/677,099.40 = 275,777.22/x
  3. Step 3: Cross multiply
    490,637.82x = 677,099.40 × 275,777.22
  4. Step 4: Simplify right side
    490,637.82x = 186,728,590,195.67
  5. Step 5: Solve for x
    x = 186,728,590,195.67/490,637.82
  6. Step 6: Final answer
    x = 380,583.36

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1.5x scale

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.