Home / 846,789.76-1,270,106.40-285,829.12

Finding the Fourth Proportional to 846,789.76, 1,270,106.40 and 285,829.12

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Solution

The fourth proportional to 846,789.76, 1,270,106.40 and 285,829.12 is: 428,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,789.76 : 1,270,106.40 = 285,829.12 : x
  2. Step 2: Convert to fraction form
    846,789.76/1,270,106.40 = 285,829.12/x
  3. Step 3: Cross multiply
    846,789.76x = 1,270,106.40 × 285,829.12
  4. Step 4: Simplify right side
    846,789.76x = 363,033,394,618.37
  5. Step 5: Solve for x
    x = 363,033,394,618.37/846,789.76
  6. Step 6: Final answer
    x = 428,717.27

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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.