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Finding the Fourth Proportional to 485,035.34, 727,864.39 and 325,291.67

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Solution

The fourth proportional to 485,035.34, 727,864.39 and 325,291.67 is: 488,146.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,035.34 : 727,864.39 = 325,291.67 : x
  2. Step 2: Convert to fraction form
    485,035.34/727,864.39 = 325,291.67/x
  3. Step 3: Cross multiply
    485,035.34x = 727,864.39 × 325,291.67
  4. Step 4: Simplify right side
    485,035.34x = 236,768,222,453.42
  5. Step 5: Solve for x
    x = 236,768,222,453.42/485,035.34
  6. Step 6: Final answer
    x = 488,146.33

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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.