Home / 479,926.68-720,021.26-210,005.74

Finding the Fourth Proportional to 479,926.68, 720,021.26 and 210,005.74

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Solution

The fourth proportional to 479,926.68, 720,021.26 and 210,005.74 is: 315,066.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,926.68 : 720,021.26 = 210,005.74 : x
  2. Step 2: Convert to fraction form
    479,926.68/720,021.26 = 210,005.74/x
  3. Step 3: Cross multiply
    479,926.68x = 720,021.26 × 210,005.74
  4. Step 4: Simplify right side
    479,926.68x = 151,208,597,522.03
  5. Step 5: Solve for x
    x = 151,208,597,522.03/479,926.68
  6. Step 6: Final answer
    x = 315,066.04

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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.