Home / 818,954.40-1,228,604.40-258,045.60

Finding the Fourth Proportional to 818,954.40, 1,228,604.40 and 258,045.60

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Solution

The fourth proportional to 818,954.40, 1,228,604.40 and 258,045.60 is: 387,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,954.40 : 1,228,604.40 = 258,045.60 : x
  2. Step 2: Convert to fraction form
    818,954.40/1,228,604.40 = 258,045.60/x
  3. Step 3: Cross multiply
    818,954.40x = 1,228,604.40 × 258,045.60
  4. Step 4: Simplify right side
    818,954.40x = 317,035,959,560.64
  5. Step 5: Solve for x
    x = 317,035,959,560.64/818,954.40
  6. Step 6: Final answer
    x = 387,122.85

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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.