Home / 874,414.85-1,312,003.78-306,203.77

Finding the Fourth Proportional to 874,414.85, 1,312,003.78 and 306,203.77

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Solution

The fourth proportional to 874,414.85, 1,312,003.78 and 306,203.77 is: 459,439.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,414.85 : 1,312,003.78 = 306,203.77 : x
  2. Step 2: Convert to fraction form
    874,414.85/1,312,003.78 = 306,203.77/x
  3. Step 3: Cross multiply
    874,414.85x = 1,312,003.78 × 306,203.77
  4. Step 4: Simplify right side
    874,414.85x = 401,740,500,874.74
  5. Step 5: Solve for x
    x = 401,740,500,874.74/874,414.85
  6. Step 6: Final answer
    x = 459,439.25

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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.