Home / 686,441.22-946,238.82-481,918.38

Finding the Fourth Proportional to 686,441.22, 946,238.82 and 481,918.38

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Solution

The fourth proportional to 686,441.22, 946,238.82 and 481,918.38 is: 664,310.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,441.22 : 946,238.82 = 481,918.38 : x
  2. Step 2: Convert to fraction form
    686,441.22/946,238.82 = 481,918.38/x
  3. Step 3: Cross multiply
    686,441.22x = 946,238.82 × 481,918.38
  4. Step 4: Simplify right side
    686,441.22x = 456,009,879,227.51
  5. Step 5: Solve for x
    x = 456,009,879,227.51/686,441.22
  6. Step 6: Final answer
    x = 664,310.16

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.