Home / 915,974.20-1,373,321.30-541,804.60

Finding the Fourth Proportional to 915,974.20, 1,373,321.30 and 541,804.60

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Solution

The fourth proportional to 915,974.20, 1,373,321.30 and 541,804.60 is: 812,328.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,974.20 : 1,373,321.30 = 541,804.60 : x
  2. Step 2: Convert to fraction form
    915,974.20/1,373,321.30 = 541,804.60/x
  3. Step 3: Cross multiply
    915,974.20x = 1,373,321.30 × 541,804.60
  4. Step 4: Simplify right side
    915,974.20x = 744,071,797,617.98
  5. Step 5: Solve for x
    x = 744,071,797,617.98/915,974.20
  6. Step 6: Final answer
    x = 812,328.34

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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.