Home / 818,810.68-1,228,046.63-219,629.32

Finding the Fourth Proportional to 818,810.68, 1,228,046.63 and 219,629.32

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Solution

The fourth proportional to 818,810.68, 1,228,046.63 and 219,629.32 is: 329,398.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,810.68 : 1,228,046.63 = 219,629.32 : x
  2. Step 2: Convert to fraction form
    818,810.68/1,228,046.63 = 219,629.32/x
  3. Step 3: Cross multiply
    818,810.68x = 1,228,046.63 × 219,629.32
  4. Step 4: Simplify right side
    818,810.68x = 269,715,046,275.19
  5. Step 5: Solve for x
    x = 269,715,046,275.19/818,810.68
  6. Step 6: Final answer
    x = 329,398.54

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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.