Home / 455,828.20-683,742.30-219,632.20

Finding the Fourth Proportional to 455,828.20, 683,742.30 and 219,632.20

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Solution

The fourth proportional to 455,828.20, 683,742.30 and 219,632.20 is: 329,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,828.20 : 683,742.30 = 219,632.20 : x
  2. Step 2: Convert to fraction form
    455,828.20/683,742.30 = 219,632.20/x
  3. Step 3: Cross multiply
    455,828.20x = 683,742.30 × 219,632.20
  4. Step 4: Simplify right side
    455,828.20x = 150,171,825,582.06
  5. Step 5: Solve for x
    x = 150,171,825,582.06/455,828.20
  6. Step 6: Final answer
    x = 329,448.30

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Similar ratio
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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.