Home / 742,783.80-1,114,249.50-269,506.05

Finding the Fourth Proportional to 742,783.80, 1,114,249.50 and 269,506.05

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Solution

The fourth proportional to 742,783.80, 1,114,249.50 and 269,506.05 is: 404,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,783.80 : 1,114,249.50 = 269,506.05 : x
  2. Step 2: Convert to fraction form
    742,783.80/1,114,249.50 = 269,506.05/x
  3. Step 3: Cross multiply
    742,783.80x = 1,114,249.50 × 269,506.05
  4. Step 4: Simplify right side
    742,783.80x = 300,296,981,459.48
  5. Step 5: Solve for x
    x = 300,296,981,459.48/742,783.80
  6. Step 6: Final answer
    x = 404,285.85

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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.