Home / 809,799.75-1,117,523.66-470,289.87

Finding the Fourth Proportional to 809,799.75, 1,117,523.66 and 470,289.87

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Solution

The fourth proportional to 809,799.75, 1,117,523.66 and 470,289.87 is: 649,000.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,799.75 : 1,117,523.66 = 470,289.87 : x
  2. Step 2: Convert to fraction form
    809,799.75/1,117,523.66 = 470,289.87/x
  3. Step 3: Cross multiply
    809,799.75x = 1,117,523.66 × 470,289.87
  4. Step 4: Simplify right side
    809,799.75x = 525,560,054,431.88
  5. Step 5: Solve for x
    x = 525,560,054,431.88/809,799.75
  6. Step 6: Final answer
    x = 649,000.02

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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.