Home / 979,323.20-1,469,189.60-314,542.40

Finding the Fourth Proportional to 979,323.20, 1,469,189.60 and 314,542.40

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Solution

The fourth proportional to 979,323.20, 1,469,189.60 and 314,542.40 is: 471,879.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,323.20 : 1,469,189.60 = 314,542.40 : x
  2. Step 2: Convert to fraction form
    979,323.20/1,469,189.60 = 314,542.40/x
  3. Step 3: Cross multiply
    979,323.20x = 1,469,189.60 × 314,542.40
  4. Step 4: Simplify right side
    979,323.20x = 462,122,422,839.04
  5. Step 5: Solve for x
    x = 462,122,422,839.04/979,323.20
  6. Step 6: Final answer
    x = 471,879.38

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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.