Home / 853,433.94-1,280,150.48-254,379.80

Finding the Fourth Proportional to 853,433.94, 1,280,150.48 and 254,379.80

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Solution

The fourth proportional to 853,433.94, 1,280,150.48 and 254,379.80 is: 381,569.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,433.94 : 1,280,150.48 = 254,379.80 : x
  2. Step 2: Convert to fraction form
    853,433.94/1,280,150.48 = 254,379.80/x
  3. Step 3: Cross multiply
    853,433.94x = 1,280,150.48 × 254,379.80
  4. Step 4: Simplify right side
    853,433.94x = 325,644,423,072.30
  5. Step 5: Solve for x
    x = 325,644,423,072.30/853,433.94
  6. Step 6: Final answer
    x = 381,569.57

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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.