Home / 728,213.91-1,004,523.66-455,808.88

Finding the Fourth Proportional to 728,213.91, 1,004,523.66 and 455,808.88

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Solution

The fourth proportional to 728,213.91, 1,004,523.66 and 455,808.88 is: 628,758.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,213.91 : 1,004,523.66 = 455,808.88 : x
  2. Step 2: Convert to fraction form
    728,213.91/1,004,523.66 = 455,808.88/x
  3. Step 3: Cross multiply
    728,213.91x = 1,004,523.66 × 455,808.88
  4. Step 4: Simplify right side
    728,213.91x = 457,870,808,618.69
  5. Step 5: Solve for x
    x = 457,870,808,618.69/728,213.91
  6. Step 6: Final answer
    x = 628,758.67

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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.