Home / 451,340.75-672,976.01-438,940.46

Finding the Fourth Proportional to 451,340.75, 672,976.01 and 438,940.46

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Solution

The fourth proportional to 451,340.75, 672,976.01 and 438,940.46 is: 654,486.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,340.75 : 672,976.01 = 438,940.46 : x
  2. Step 2: Convert to fraction form
    451,340.75/672,976.01 = 438,940.46/x
  3. Step 3: Cross multiply
    451,340.75x = 672,976.01 × 438,940.46
  4. Step 4: Simplify right side
    451,340.75x = 295,396,396,033.49
  5. Step 5: Solve for x
    x = 295,396,396,033.49/451,340.75
  6. Step 6: Final answer
    x = 654,486.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.