Home / 851,016.98-1,276,636.14-311,189.19

Finding the Fourth Proportional to 851,016.98, 1,276,636.14 and 311,189.19

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Solution

The fourth proportional to 851,016.98, 1,276,636.14 and 311,189.19 is: 466,824.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,016.98 : 1,276,636.14 = 311,189.19 : x
  2. Step 2: Convert to fraction form
    851,016.98/1,276,636.14 = 311,189.19/x
  3. Step 3: Cross multiply
    851,016.98x = 1,276,636.14 × 311,189.19
  4. Step 4: Simplify right side
    851,016.98x = 397,275,368,725.02
  5. Step 5: Solve for x
    x = 397,275,368,725.02/851,016.98
  6. Step 6: Final answer
    x = 466,824.25

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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.