Home / 919,231.20-1,379,883.60-709,797.60

Finding the Fourth Proportional to 919,231.20, 1,379,883.60 and 709,797.60

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Solution

The fourth proportional to 919,231.20, 1,379,883.60 and 709,797.60 is: 1,065,496.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,231.20 : 1,379,883.60 = 709,797.60 : x
  2. Step 2: Convert to fraction form
    919,231.20/1,379,883.60 = 709,797.60/x
  3. Step 3: Cross multiply
    919,231.20x = 1,379,883.60 × 709,797.60
  4. Step 4: Simplify right side
    919,231.20x = 979,438,067,559.36
  5. Step 5: Solve for x
    x = 979,438,067,559.36/919,231.20
  6. Step 6: Final answer
    x = 1,065,496.98

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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.