Home / 485,492.73-669,667.26-322,145.70

Finding the Fourth Proportional to 485,492.73, 669,667.26 and 322,145.70

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Solution

The fourth proportional to 485,492.73, 669,667.26 and 322,145.70 is: 444,353.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,492.73 : 669,667.26 = 322,145.70 : x
  2. Step 2: Convert to fraction form
    485,492.73/669,667.26 = 322,145.70/x
  3. Step 3: Cross multiply
    485,492.73x = 669,667.26 × 322,145.70
  4. Step 4: Simplify right side
    485,492.73x = 215,730,428,239.78
  5. Step 5: Solve for x
    x = 215,730,428,239.78/485,492.73
  6. Step 6: Final answer
    x = 444,353.57

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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.