Home / 701,342.60-1,051,990.86-280,505.48

Finding the Fourth Proportional to 701,342.60, 1,051,990.86 and 280,505.48

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Solution

The fourth proportional to 701,342.60, 1,051,990.86 and 280,505.48 is: 420,749.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,342.60 : 1,051,990.86 = 280,505.48 : x
  2. Step 2: Convert to fraction form
    701,342.60/1,051,990.86 = 280,505.48/x
  3. Step 3: Cross multiply
    701,342.60x = 1,051,990.86 × 280,505.48
  4. Step 4: Simplify right side
    701,342.60x = 295,089,201,139.91
  5. Step 5: Solve for x
    x = 295,089,201,139.91/701,342.60
  6. Step 6: Final answer
    x = 420,749.01

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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.