Home / 641,578.32-961,930.08-325,425.60

Finding the Fourth Proportional to 641,578.32, 961,930.08 and 325,425.60

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Solution

The fourth proportional to 641,578.32, 961,930.08 and 325,425.60 is: 487,916.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,578.32 : 961,930.08 = 325,425.60 : x
  2. Step 2: Convert to fraction form
    641,578.32/961,930.08 = 325,425.60/x
  3. Step 3: Cross multiply
    641,578.32x = 961,930.08 × 325,425.60
  4. Step 4: Simplify right side
    641,578.32x = 313,036,673,442.05
  5. Step 5: Solve for x
    x = 313,036,673,442.05/641,578.32
  6. Step 6: Final answer
    x = 487,916.54

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1.5x scale

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.