Home / 654,350.40-979,192.80-453,729.60

Finding the Fourth Proportional to 654,350.40, 979,192.80 and 453,729.60

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Solution

The fourth proportional to 654,350.40, 979,192.80 and 453,729.60 is: 678,976.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,350.40 : 979,192.80 = 453,729.60 : x
  2. Step 2: Convert to fraction form
    654,350.40/979,192.80 = 453,729.60/x
  3. Step 3: Cross multiply
    654,350.40x = 979,192.80 × 453,729.60
  4. Step 4: Simplify right side
    654,350.40x = 444,288,757,466.88
  5. Step 5: Solve for x
    x = 444,288,757,466.88/654,350.40
  6. Step 6: Final answer
    x = 678,976.83

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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.