Home / 979,618.40-1,469,427.60-419,746.40

Finding the Fourth Proportional to 979,618.40, 1,469,427.60 and 419,746.40

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Solution

The fourth proportional to 979,618.40, 1,469,427.60 and 419,746.40 is: 629,619.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,618.40 : 1,469,427.60 = 419,746.40 : x
  2. Step 2: Convert to fraction form
    979,618.40/1,469,427.60 = 419,746.40/x
  3. Step 3: Cross multiply
    979,618.40x = 1,469,427.60 × 419,746.40
  4. Step 4: Simplify right side
    979,618.40x = 616,786,945,160.64
  5. Step 5: Solve for x
    x = 616,786,945,160.64/979,618.40
  6. Step 6: Final answer
    x = 629,619.60

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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.