Home / 857,582.67-1,286,559.78-258,493.71

Finding the Fourth Proportional to 857,582.67, 1,286,559.78 and 258,493.71

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Solution

The fourth proportional to 857,582.67, 1,286,559.78 and 258,493.71 is: 387,796.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,582.67 : 1,286,559.78 = 258,493.71 : x
  2. Step 2: Convert to fraction form
    857,582.67/1,286,559.78 = 258,493.71/x
  3. Step 3: Cross multiply
    857,582.67x = 1,286,559.78 × 258,493.71
  4. Step 4: Simplify right side
    857,582.67x = 332,567,610,668.98
  5. Step 5: Solve for x
    x = 332,567,610,668.98/857,582.67
  6. Step 6: Final answer
    x = 387,796.56

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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.