Home / 837,669.56-1,256,645.46-388,208.12

Finding the Fourth Proportional to 837,669.56, 1,256,645.46 and 388,208.12

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Solution

The fourth proportional to 837,669.56, 1,256,645.46 and 388,208.12 is: 582,377.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,669.56 : 1,256,645.46 = 388,208.12 : x
  2. Step 2: Convert to fraction form
    837,669.56/1,256,645.46 = 388,208.12/x
  3. Step 3: Cross multiply
    837,669.56x = 1,256,645.46 × 388,208.12
  4. Step 4: Simplify right side
    837,669.56x = 487,839,971,533.14
  5. Step 5: Solve for x
    x = 487,839,971,533.14/837,669.56
  6. Step 6: Final answer
    x = 582,377.58

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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.