Home / 448,639.21-673,274.45-405,760.38

Finding the Fourth Proportional to 448,639.21, 673,274.45 and 405,760.38

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Solution

The fourth proportional to 448,639.21, 673,274.45 and 405,760.38 is: 608,926.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,639.21 : 673,274.45 = 405,760.38 : x
  2. Step 2: Convert to fraction form
    448,639.21/673,274.45 = 405,760.38/x
  3. Step 3: Cross multiply
    448,639.21x = 673,274.45 × 405,760.38
  4. Step 4: Simplify right side
    448,639.21x = 273,188,096,676.29
  5. Step 5: Solve for x
    x = 273,188,096,676.29/448,639.21
  6. Step 6: Final answer
    x = 608,926.04

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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.