Home / 490,661.03-677,012.82-286,672.55

Finding the Fourth Proportional to 490,661.03, 677,012.82 and 286,672.55

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Solution

The fourth proportional to 490,661.03, 677,012.82 and 286,672.55 is: 395,550.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,661.03 : 677,012.82 = 286,672.55 : x
  2. Step 2: Convert to fraction form
    490,661.03/677,012.82 = 286,672.55/x
  3. Step 3: Cross multiply
    490,661.03x = 677,012.82 × 286,672.55
  4. Step 4: Simplify right side
    490,661.03x = 194,080,988,107.03
  5. Step 5: Solve for x
    x = 194,080,988,107.03/490,661.03
  6. Step 6: Final answer
    x = 395,550.04

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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.