Home / 853,516.22-1,280,992.61-426,924.09

Finding the Fourth Proportional to 853,516.22, 1,280,992.61 and 426,924.09

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Solution

The fourth proportional to 853,516.22, 1,280,992.61 and 426,924.09 is: 640,745.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,516.22 : 1,280,992.61 = 426,924.09 : x
  2. Step 2: Convert to fraction form
    853,516.22/1,280,992.61 = 426,924.09/x
  3. Step 3: Cross multiply
    853,516.22x = 1,280,992.61 × 426,924.09
  4. Step 4: Simplify right side
    853,516.22x = 546,886,602,186.36
  5. Step 5: Solve for x
    x = 546,886,602,186.36/853,516.22
  6. Step 6: Final answer
    x = 640,745.42

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Double scale
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1.5x scale

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.