Home / 490,925.08-677,480.72-276,063.36

Finding the Fourth Proportional to 490,925.08, 677,480.72 and 276,063.36

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Solution

The fourth proportional to 490,925.08, 677,480.72 and 276,063.36 is: 380,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,925.08 : 677,480.72 = 276,063.36 : x
  2. Step 2: Convert to fraction form
    490,925.08/677,480.72 = 276,063.36/x
  3. Step 3: Cross multiply
    490,925.08x = 677,480.72 × 276,063.36
  4. Step 4: Simplify right side
    490,925.08x = 187,027,603,898.42
  5. Step 5: Solve for x
    x = 187,027,603,898.42/490,925.08
  6. Step 6: Final answer
    x = 380,969.75

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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.