Home / 853,314.80-1,279,972.08-254,260.40

Finding the Fourth Proportional to 853,314.80, 1,279,972.08 and 254,260.40

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Solution

The fourth proportional to 853,314.80, 1,279,972.08 and 254,260.40 is: 381,390.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,314.80 : 1,279,972.08 = 254,260.40 : x
  2. Step 2: Convert to fraction form
    853,314.80/1,279,972.08 = 254,260.40/x
  3. Step 3: Cross multiply
    853,314.80x = 1,279,972.08 × 254,260.40
  4. Step 4: Simplify right side
    853,314.80x = 325,446,213,049.63
  5. Step 5: Solve for x
    x = 325,446,213,049.63/853,314.80
  6. Step 6: Final answer
    x = 381,390.56

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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.