Home / 490,634.82-677,095.25-275,774.22

Finding the Fourth Proportional to 490,634.82, 677,095.25 and 275,774.22

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Solution

The fourth proportional to 490,634.82, 677,095.25 and 275,774.22 is: 380,579.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,634.82 : 677,095.25 = 275,774.22 : x
  2. Step 2: Convert to fraction form
    490,634.82/677,095.25 = 275,774.22/x
  3. Step 3: Cross multiply
    490,634.82x = 677,095.25 × 275,774.22
  4. Step 4: Simplify right side
    490,634.82x = 186,725,413,055.58
  5. Step 5: Solve for x
    x = 186,725,413,055.58/490,634.82
  6. Step 6: Final answer
    x = 380,579.21

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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.