Home / 685,498.76-1,028,458.36-306,738.36

Finding the Fourth Proportional to 685,498.76, 1,028,458.36 and 306,738.36

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Solution

The fourth proportional to 685,498.76, 1,028,458.36 and 306,738.36 is: 460,201.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,498.76 : 1,028,458.36 = 306,738.36 : x
  2. Step 2: Convert to fraction form
    685,498.76/1,028,458.36 = 306,738.36/x
  3. Step 3: Cross multiply
    685,498.76x = 1,028,458.36 × 306,738.36
  4. Step 4: Simplify right side
    685,498.76x = 315,467,630,674.69
  5. Step 5: Solve for x
    x = 315,467,630,674.69/685,498.76
  6. Step 6: Final answer
    x = 460,201.61

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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.