Home / 860,382.46-1,289,411.12-327,612.86

Finding the Fourth Proportional to 860,382.46, 1,289,411.12 and 327,612.86

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Solution

The fourth proportional to 860,382.46, 1,289,411.12 and 327,612.86 is: 490,976.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,382.46 : 1,289,411.12 = 327,612.86 : x
  2. Step 2: Convert to fraction form
    860,382.46/1,289,411.12 = 327,612.86/x
  3. Step 3: Cross multiply
    860,382.46x = 1,289,411.12 × 327,612.86
  4. Step 4: Simplify right side
    860,382.46x = 422,427,664,739.00
  5. Step 5: Solve for x
    x = 422,427,664,739.00/860,382.46
  6. Step 6: Final answer
    x = 490,976.61

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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.