Home / 810,145.20-1,215,246.96-304,659.84

Finding the Fourth Proportional to 810,145.20, 1,215,246.96 and 304,659.84

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Solution

The fourth proportional to 810,145.20, 1,215,246.96 and 304,659.84 is: 457,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,145.20 : 1,215,246.96 = 304,659.84 : x
  2. Step 2: Convert to fraction form
    810,145.20/1,215,246.96 = 304,659.84/x
  3. Step 3: Cross multiply
    810,145.20x = 1,215,246.96 × 304,659.84
  4. Step 4: Simplify right side
    810,145.20x = 370,236,944,394.09
  5. Step 5: Solve for x
    x = 370,236,944,394.09/810,145.20
  6. Step 6: Final answer
    x = 457,000.73

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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.