Home / 656,090.38-981,904.20-403,237.90

Finding the Fourth Proportional to 656,090.38, 981,904.20 and 403,237.90

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Solution

The fourth proportional to 656,090.38, 981,904.20 and 403,237.90 is: 603,485.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,090.38 : 981,904.20 = 403,237.90 : x
  2. Step 2: Convert to fraction form
    656,090.38/981,904.20 = 403,237.90/x
  3. Step 3: Cross multiply
    656,090.38x = 981,904.20 × 403,237.90
  4. Step 4: Simplify right side
    656,090.38x = 395,940,987,609.18
  5. Step 5: Solve for x
    x = 395,940,987,609.18/656,090.38
  6. Step 6: Final answer
    x = 603,485.43

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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.