Home / 840,626.10-1,260,845.69-300,860.54

Finding the Fourth Proportional to 840,626.10, 1,260,845.69 and 300,860.54

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Solution

The fourth proportional to 840,626.10, 1,260,845.69 and 300,860.54 is: 451,257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,626.10 : 1,260,845.69 = 300,860.54 : x
  2. Step 2: Convert to fraction form
    840,626.10/1,260,845.69 = 300,860.54/x
  3. Step 3: Cross multiply
    840,626.10x = 1,260,845.69 × 300,860.54
  4. Step 4: Simplify right side
    840,626.10x = 379,338,707,341.54
  5. Step 5: Solve for x
    x = 379,338,707,341.54/840,626.10
  6. Step 6: Final answer
    x = 451,257.35

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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.