Home / 860,471.00-1,290,790.83-313,512.12

Finding the Fourth Proportional to 860,471.00, 1,290,790.83 and 313,512.12

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Solution

The fourth proportional to 860,471.00, 1,290,790.83 and 313,512.12 is: 470,298.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,471.00 : 1,290,790.83 = 313,512.12 : x
  2. Step 2: Convert to fraction form
    860,471.00/1,290,790.83 = 313,512.12/x
  3. Step 3: Cross multiply
    860,471.00x = 1,290,790.83 × 313,512.12
  4. Step 4: Simplify right side
    860,471.00x = 404,678,569,589.86
  5. Step 5: Solve for x
    x = 404,678,569,589.86/860,471.00
  6. Step 6: Final answer
    x = 470,298.91

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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.