Home / 659,235.36-987,835.26-445,164.36

Finding the Fourth Proportional to 659,235.36, 987,835.26 and 445,164.36

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Solution

The fourth proportional to 659,235.36, 987,835.26 and 445,164.36 is: 667,059.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,235.36 : 987,835.26 = 445,164.36 : x
  2. Step 2: Convert to fraction form
    659,235.36/987,835.26 = 445,164.36/x
  3. Step 3: Cross multiply
    659,235.36x = 987,835.26 × 445,164.36
  4. Step 4: Simplify right side
    659,235.36x = 439,749,051,303.33
  5. Step 5: Solve for x
    x = 439,749,051,303.33/659,235.36
  6. Step 6: Final answer
    x = 667,059.26

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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.