Home / 686,769.44-947,723.87-380,845.04

Finding the Fourth Proportional to 686,769.44, 947,723.87 and 380,845.04

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Solution

The fourth proportional to 686,769.44, 947,723.87 and 380,845.04 is: 525,556.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,769.44 : 947,723.87 = 380,845.04 : x
  2. Step 2: Convert to fraction form
    686,769.44/947,723.87 = 380,845.04/x
  3. Step 3: Cross multiply
    686,769.44x = 947,723.87 × 380,845.04
  4. Step 4: Simplify right side
    686,769.44x = 360,935,933,274.88
  5. Step 5: Solve for x
    x = 360,935,933,274.88/686,769.44
  6. Step 6: Final answer
    x = 525,556.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.