Home / 751,481.58-1,126,981.78-245,905.50

Finding the Fourth Proportional to 751,481.58, 1,126,981.78 and 245,905.50

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Solution

The fourth proportional to 751,481.58, 1,126,981.78 and 245,905.50 is: 368,779.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,481.58 : 1,126,981.78 = 245,905.50 : x
  2. Step 2: Convert to fraction form
    751,481.58/1,126,981.78 = 245,905.50/x
  3. Step 3: Cross multiply
    751,481.58x = 1,126,981.78 × 245,905.50
  4. Step 4: Simplify right side
    751,481.58x = 277,131,018,101.79
  5. Step 5: Solve for x
    x = 277,131,018,101.79/751,481.58
  6. Step 6: Final answer
    x = 368,779.52

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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.