Home / 839,659.96-1,259,495.60-306,961.84

Finding the Fourth Proportional to 839,659.96, 1,259,495.60 and 306,961.84

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Solution

The fourth proportional to 839,659.96, 1,259,495.60 and 306,961.84 is: 460,444.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,659.96 : 1,259,495.60 = 306,961.84 : x
  2. Step 2: Convert to fraction form
    839,659.96/1,259,495.60 = 306,961.84/x
  3. Step 3: Cross multiply
    839,659.96x = 1,259,495.60 × 306,961.84
  4. Step 4: Simplify right side
    839,659.96x = 386,617,086,847.90
  5. Step 5: Solve for x
    x = 386,617,086,847.90/839,659.96
  6. Step 6: Final answer
    x = 460,444.83

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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.