Home / 490,582.56-736,081.20-210,231.84

Finding the Fourth Proportional to 490,582.56, 736,081.20 and 210,231.84

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Solution

The fourth proportional to 490,582.56, 736,081.20 and 210,231.84 is: 315,436.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,582.56 : 736,081.20 = 210,231.84 : x
  2. Step 2: Convert to fraction form
    490,582.56/736,081.20 = 210,231.84/x
  3. Step 3: Cross multiply
    490,582.56x = 736,081.20 × 210,231.84
  4. Step 4: Simplify right side
    490,582.56x = 154,747,705,065.41
  5. Step 5: Solve for x
    x = 154,747,705,065.41/490,582.56
  6. Step 6: Final answer
    x = 315,436.62

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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.