Home / 479,664.58-718,683.90-289,725.89

Finding the Fourth Proportional to 479,664.58, 718,683.90 and 289,725.89

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Solution

The fourth proportional to 479,664.58, 718,683.90 and 289,725.89 is: 434,097.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,664.58 : 718,683.90 = 289,725.89 : x
  2. Step 2: Convert to fraction form
    479,664.58/718,683.90 = 289,725.89/x
  3. Step 3: Cross multiply
    479,664.58x = 718,683.90 × 289,725.89
  4. Step 4: Simplify right side
    479,664.58x = 208,221,332,556.17
  5. Step 5: Solve for x
    x = 208,221,332,556.17/479,664.58
  6. Step 6: Final answer
    x = 434,097.79

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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.