Home / 853,269.86-1,280,095.70-320,795.50

Finding the Fourth Proportional to 853,269.86, 1,280,095.70 and 320,795.50

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Solution

The fourth proportional to 853,269.86, 1,280,095.70 and 320,795.50 is: 481,265.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,269.86 : 1,280,095.70 = 320,795.50 : x
  2. Step 2: Convert to fraction form
    853,269.86/1,280,095.70 = 320,795.50/x
  3. Step 3: Cross multiply
    853,269.86x = 1,280,095.70 × 320,795.50
  4. Step 4: Simplify right side
    853,269.86x = 410,648,938,525.37
  5. Step 5: Solve for x
    x = 410,648,938,525.37/853,269.86
  6. Step 6: Final answer
    x = 481,265.02

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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.