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Finding the Fourth Proportional to 423,481.52, 634,661.57 and 310,633.34

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Solution

The fourth proportional to 423,481.52, 634,661.57 and 310,633.34 is: 465,538.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,481.52 : 634,661.57 = 310,633.34 : x
  2. Step 2: Convert to fraction form
    423,481.52/634,661.57 = 310,633.34/x
  3. Step 3: Cross multiply
    423,481.52x = 634,661.57 × 310,633.34
  4. Step 4: Simplify right side
    423,481.52x = 197,147,043,258.74
  5. Step 5: Solve for x
    x = 197,147,043,258.74/423,481.52
  6. Step 6: Final answer
    x = 465,538.72

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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.