Home / 979,605.40-1,469,408.10-419,733.40

Finding the Fourth Proportional to 979,605.40, 1,469,408.10 and 419,733.40

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Solution

The fourth proportional to 979,605.40, 1,469,408.10 and 419,733.40 is: 629,600.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,605.40 : 1,469,408.10 = 419,733.40 : x
  2. Step 2: Convert to fraction form
    979,605.40/1,469,408.10 = 419,733.40/x
  3. Step 3: Cross multiply
    979,605.40x = 1,469,408.10 × 419,733.40
  4. Step 4: Simplify right side
    979,605.40x = 616,759,657,800.54
  5. Step 5: Solve for x
    x = 616,759,657,800.54/979,605.40
  6. Step 6: Final answer
    x = 629,600.10

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1.5x scale

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.