Home / 638,918.69-957,003.86-301,453.79

Finding the Fourth Proportional to 638,918.69, 957,003.86 and 301,453.79

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Solution

The fourth proportional to 638,918.69, 957,003.86 and 301,453.79 is: 451,532.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,918.69 : 957,003.86 = 301,453.79 : x
  2. Step 2: Convert to fraction form
    638,918.69/957,003.86 = 301,453.79/x
  3. Step 3: Cross multiply
    638,918.69x = 957,003.86 × 301,453.79
  4. Step 4: Simplify right side
    638,918.69x = 288,492,436,610.25
  5. Step 5: Solve for x
    x = 288,492,436,610.25/638,918.69
  6. Step 6: Final answer
    x = 451,532.32

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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.