Home / 818,804.40-1,228,037.13-219,623.10

Finding the Fourth Proportional to 818,804.40, 1,228,037.13 and 219,623.10

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Solution

The fourth proportional to 818,804.40, 1,228,037.13 and 219,623.10 is: 329,389.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,804.40 : 1,228,037.13 = 219,623.10 : x
  2. Step 2: Convert to fraction form
    818,804.40/1,228,037.13 = 219,623.10/x
  3. Step 3: Cross multiply
    818,804.40x = 1,228,037.13 × 219,623.10
  4. Step 4: Simplify right side
    818,804.40x = 269,705,321,405.70
  5. Step 5: Solve for x
    x = 269,705,321,405.70/818,804.40
  6. Step 6: Final answer
    x = 329,389.19

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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.