Home / 685,091.20-1,027,546.08-311,028.16

Finding the Fourth Proportional to 685,091.20, 1,027,546.08 and 311,028.16

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Solution

The fourth proportional to 685,091.20, 1,027,546.08 and 311,028.16 is: 466,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,091.20 : 1,027,546.08 = 311,028.16 : x
  2. Step 2: Convert to fraction form
    685,091.20/1,027,546.08 = 311,028.16/x
  3. Step 3: Cross multiply
    685,091.20x = 1,027,546.08 × 311,028.16
  4. Step 4: Simplify right side
    685,091.20x = 319,595,766,577.61
  5. Step 5: Solve for x
    x = 319,595,766,577.61/685,091.20
  6. Step 6: Final answer
    x = 466,501.05

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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.