Home / 727,879.76-1,091,921.69-254,457.44

Finding the Fourth Proportional to 727,879.76, 1,091,921.69 and 254,457.44

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Solution

The fourth proportional to 727,879.76, 1,091,921.69 and 254,457.44 is: 381,721.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,879.76 : 1,091,921.69 = 254,457.44 : x
  2. Step 2: Convert to fraction form
    727,879.76/1,091,921.69 = 254,457.44/x
  3. Step 3: Cross multiply
    727,879.76x = 1,091,921.69 × 254,457.44
  4. Step 4: Simplify right side
    727,879.76x = 277,847,593,094.41
  5. Step 5: Solve for x
    x = 277,847,593,094.41/727,879.76
  6. Step 6: Final answer
    x = 381,721.83

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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.