Home / 853,269.36-1,280,094.95-320,795

Finding the Fourth Proportional to 853,269.36, 1,280,094.95 and 320,795

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Solution

The fourth proportional to 853,269.36, 1,280,094.95 and 320,795 is: 481,264.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,269.36 : 1,280,094.95 = 320,795 : x
  2. Step 2: Convert to fraction form
    853,269.36/1,280,094.95 = 320,795/x
  3. Step 3: Cross multiply
    853,269.36x = 1,280,094.95 × 320,795
  4. Step 4: Simplify right side
    853,269.36x = 410,648,059,485.25
  5. Step 5: Solve for x
    x = 410,648,059,485.25/853,269.36
  6. Step 6: Final answer
    x = 481,264.27

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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.