Home / 1,078,930.40-1,619,043.60-447,778.40

Finding the Fourth Proportional to 1,078,930.40, 1,619,043.60 and 447,778.40

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Solution

The fourth proportional to 1,078,930.40, 1,619,043.60 and 447,778.40 is: 671,936.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,930.40 : 1,619,043.60 = 447,778.40 : x
  2. Step 2: Convert to fraction form
    1,078,930.40/1,619,043.60 = 447,778.40/x
  3. Step 3: Cross multiply
    1,078,930.40x = 1,619,043.60 × 447,778.40
  4. Step 4: Simplify right side
    1,078,930.40x = 724,972,752,738.24
  5. Step 5: Solve for x
    x = 724,972,752,738.24/1,078,930.40
  6. Step 6: Final answer
    x = 671,936.53

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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.