Home / 751,285.61-1,126,940.76-211,554.86

Finding the Fourth Proportional to 751,285.61, 1,126,940.76 and 211,554.86

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Solution

The fourth proportional to 751,285.61, 1,126,940.76 and 211,554.86 is: 317,335.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,285.61 : 1,126,940.76 = 211,554.86 : x
  2. Step 2: Convert to fraction form
    751,285.61/1,126,940.76 = 211,554.86/x
  3. Step 3: Cross multiply
    751,285.61x = 1,126,940.76 × 211,554.86
  4. Step 4: Simplify right side
    751,285.61x = 238,409,797,527.45
  5. Step 5: Solve for x
    x = 238,409,797,527.45/751,285.61
  6. Step 6: Final answer
    x = 317,335.77

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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.