Home / 809,855.25-1,117,600.35-470,345.37

Finding the Fourth Proportional to 809,855.25, 1,117,600.35 and 470,345.37

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Solution

The fourth proportional to 809,855.25, 1,117,600.35 and 470,345.37 is: 649,076.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,855.25 : 1,117,600.35 = 470,345.37 : x
  2. Step 2: Convert to fraction form
    809,855.25/1,117,600.35 = 470,345.37/x
  3. Step 3: Cross multiply
    809,855.25x = 1,117,600.35 × 470,345.37
  4. Step 4: Simplify right side
    809,855.25x = 525,658,150,132.88
  5. Step 5: Solve for x
    x = 525,658,150,132.88/809,855.25
  6. Step 6: Final answer
    x = 649,076.67

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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.