Home / 809,661.03-1,214,493.08-210,621.22

Finding the Fourth Proportional to 809,661.03, 1,214,493.08 and 210,621.22

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Solution

The fourth proportional to 809,661.03, 1,214,493.08 and 210,621.22 is: 315,932.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,661.03 : 1,214,493.08 = 210,621.22 : x
  2. Step 2: Convert to fraction form
    809,661.03/1,214,493.08 = 210,621.22/x
  3. Step 3: Cross multiply
    809,661.03x = 1,214,493.08 × 210,621.22
  4. Step 4: Simplify right side
    809,661.03x = 255,798,018,641.22
  5. Step 5: Solve for x
    x = 255,798,018,641.22/809,661.03
  6. Step 6: Final answer
    x = 315,932.24

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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.