Home / 837,786.66-1,256,679.93-388,448.34

Finding the Fourth Proportional to 837,786.66, 1,256,679.93 and 388,448.34

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Solution

The fourth proportional to 837,786.66, 1,256,679.93 and 388,448.34 is: 582,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,786.66 : 1,256,679.93 = 388,448.34 : x
  2. Step 2: Convert to fraction form
    837,786.66/1,256,679.93 = 388,448.34/x
  3. Step 3: Cross multiply
    837,786.66x = 1,256,679.93 × 388,448.34
  4. Step 4: Simplify right side
    837,786.66x = 488,155,232,719.82
  5. Step 5: Solve for x
    x = 488,155,232,719.82/837,786.66
  6. Step 6: Final answer
    x = 582,672.48

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1.5x scale

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.