Home / 1,114,900.80-1,673,007.30-405,000.60

Finding the Fourth Proportional to 1,114,900.80, 1,673,007.30 and 405,000.60

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Solution

The fourth proportional to 1,114,900.80, 1,673,007.30 and 405,000.60 is: 607,739.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,900.80 : 1,673,007.30 = 405,000.60 : x
  2. Step 2: Convert to fraction form
    1,114,900.80/1,673,007.30 = 405,000.60/x
  3. Step 3: Cross multiply
    1,114,900.80x = 1,673,007.30 × 405,000.60
  4. Step 4: Simplify right side
    1,114,900.80x = 677,568,960,304.38
  5. Step 5: Solve for x
    x = 677,568,960,304.38/1,114,900.80
  6. Step 6: Final answer
    x = 607,739.24

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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.