Home / 686,435.22-946,230.54-481,912.38

Finding the Fourth Proportional to 686,435.22, 946,230.54 and 481,912.38

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Solution

The fourth proportional to 686,435.22, 946,230.54 and 481,912.38 is: 664,301.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,435.22 : 946,230.54 = 481,912.38 : x
  2. Step 2: Convert to fraction form
    686,435.22/946,230.54 = 481,912.38/x
  3. Step 3: Cross multiply
    686,435.22x = 946,230.54 × 481,912.38
  4. Step 4: Simplify right side
    686,435.22x = 456,000,211,560.09
  5. Step 5: Solve for x
    x = 456,000,211,560.09/686,435.22
  6. Step 6: Final answer
    x = 664,301.89

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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.