Home / 831,169.28-1,245,769.32-381,511.28

Finding the Fourth Proportional to 831,169.28, 1,245,769.32 and 381,511.28

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Solution

The fourth proportional to 831,169.28, 1,245,769.32 and 381,511.28 is: 571,814.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,169.28 : 1,245,769.32 = 381,511.28 : x
  2. Step 2: Convert to fraction form
    831,169.28/1,245,769.32 = 381,511.28/x
  3. Step 3: Cross multiply
    831,169.28x = 1,245,769.32 × 381,511.28
  4. Step 4: Simplify right side
    831,169.28x = 475,275,047,857.93
  5. Step 5: Solve for x
    x = 475,275,047,857.93/831,169.28
  6. Step 6: Final answer
    x = 571,814.98

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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.