Home / 485,134.36-669,763.26-324,261.88

Finding the Fourth Proportional to 485,134.36, 669,763.26 and 324,261.88

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Solution

The fourth proportional to 485,134.36, 669,763.26 and 324,261.88 is: 447,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,134.36 : 669,763.26 = 324,261.88 : x
  2. Step 2: Convert to fraction form
    485,134.36/669,763.26 = 324,261.88/x
  3. Step 3: Cross multiply
    485,134.36x = 669,763.26 × 324,261.88
  4. Step 4: Simplify right side
    485,134.36x = 217,178,693,842.53
  5. Step 5: Solve for x
    x = 217,178,693,842.53/485,134.36
  6. Step 6: Final answer
    x = 447,667.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.