Home / 2,124,709.98-3,187,685.56-685,361.51

Finding the Fourth Proportional to 2,124,709.98, 3,187,685.56 and 685,361.51

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Solution

The fourth proportional to 2,124,709.98, 3,187,685.56 and 685,361.51 is: 1,028,242.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124,709.98 : 3,187,685.56 = 685,361.51 : x
  2. Step 2: Convert to fraction form
    2,124,709.98/3,187,685.56 = 685,361.51/x
  3. Step 3: Cross multiply
    2,124,709.98x = 3,187,685.56 × 685,361.51
  4. Step 4: Simplify right side
    2,124,709.98x = 2,184,716,988,806.80
  5. Step 5: Solve for x
    x = 2,184,716,988,806.80/2,124,709.98
  6. Step 6: Final answer
    x = 1,028,242.45

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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.