Home / 490,789.40-677,279.54-272,993.36

Finding the Fourth Proportional to 490,789.40, 677,279.54 and 272,993.36

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Solution

The fourth proportional to 490,789.40, 677,279.54 and 272,993.36 is: 376,725.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,789.40 : 677,279.54 = 272,993.36 : x
  2. Step 2: Convert to fraction form
    490,789.40/677,279.54 = 272,993.36/x
  3. Step 3: Cross multiply
    490,789.40x = 677,279.54 × 272,993.36
  4. Step 4: Simplify right side
    490,789.40x = 184,892,814,579.94
  5. Step 5: Solve for x
    x = 184,892,814,579.94/490,789.40
  6. Step 6: Final answer
    x = 376,725.37

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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.