Home / 809,491.96-1,214,123.82-509,056.60

Finding the Fourth Proportional to 809,491.96, 1,214,123.82 and 509,056.60

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Solution

The fourth proportional to 809,491.96, 1,214,123.82 and 509,056.60 is: 763,513.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,491.96 : 1,214,123.82 = 509,056.60 : x
  2. Step 2: Convert to fraction form
    809,491.96/1,214,123.82 = 509,056.60/x
  3. Step 3: Cross multiply
    809,491.96x = 1,214,123.82 × 509,056.60
  4. Step 4: Simplify right side
    809,491.96x = 618,057,743,788.21
  5. Step 5: Solve for x
    x = 618,057,743,788.21/809,491.96
  6. Step 6: Final answer
    x = 763,513.13

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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.