Home / 448,766.88-673,145.10-128,926.56

Finding the Fourth Proportional to 448,766.88, 673,145.10 and 128,926.56

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Solution

The fourth proportional to 448,766.88, 673,145.10 and 128,926.56 is: 193,388.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,766.88 : 673,145.10 = 128,926.56 : x
  2. Step 2: Convert to fraction form
    448,766.88/673,145.10 = 128,926.56/x
  3. Step 3: Cross multiply
    448,766.88x = 673,145.10 × 128,926.56
  4. Step 4: Simplify right side
    448,766.88x = 86,786,282,123.86
  5. Step 5: Solve for x
    x = 86,786,282,123.86/448,766.88
  6. Step 6: Final answer
    x = 193,388.34

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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.