Home / 850,803.10-1,275,770.55-281,981.68

Finding the Fourth Proportional to 850,803.10, 1,275,770.55 and 281,981.68

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Solution

The fourth proportional to 850,803.10, 1,275,770.55 and 281,981.68 is: 422,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,803.10 : 1,275,770.55 = 281,981.68 : x
  2. Step 2: Convert to fraction form
    850,803.10/1,275,770.55 = 281,981.68/x
  3. Step 3: Cross multiply
    850,803.10x = 1,275,770.55 × 281,981.68
  4. Step 4: Simplify right side
    850,803.10x = 359,743,916,604.67
  5. Step 5: Solve for x
    x = 359,743,916,604.67/850,803.10
  6. Step 6: Final answer
    x = 422,828.64

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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.