Home / 859,829.78-1,289,743.12-228,743.58

Finding the Fourth Proportional to 859,829.78, 1,289,743.12 and 228,743.58

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Solution

The fourth proportional to 859,829.78, 1,289,743.12 and 228,743.58 is: 343,114.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,829.78 : 1,289,743.12 = 228,743.58 : x
  2. Step 2: Convert to fraction form
    859,829.78/1,289,743.12 = 228,743.58/x
  3. Step 3: Cross multiply
    859,829.78x = 1,289,743.12 × 228,743.58
  4. Step 4: Simplify right side
    859,829.78x = 295,020,458,549.17
  5. Step 5: Solve for x
    x = 295,020,458,549.17/859,829.78
  6. Step 6: Final answer
    x = 343,114.96

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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.