Home / 818,654.41-1,228,112.83-345,409.48

Finding the Fourth Proportional to 818,654.41, 1,228,112.83 and 345,409.48

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Solution

The fourth proportional to 818,654.41, 1,228,112.83 and 345,409.48 is: 518,169.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,654.41 : 1,228,112.83 = 345,409.48 : x
  2. Step 2: Convert to fraction form
    818,654.41/1,228,112.83 = 345,409.48/x
  3. Step 3: Cross multiply
    818,654.41x = 1,228,112.83 × 345,409.48
  4. Step 4: Simplify right side
    818,654.41x = 424,201,807,851.06
  5. Step 5: Solve for x
    x = 424,201,807,851.06/818,654.41
  6. Step 6: Final answer
    x = 518,169.58

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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.