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Finding the Fourth Proportional to 475,703.74, 656,815.56 and 306,233.08

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Solution

The fourth proportional to 475,703.74, 656,815.56 and 306,233.08 is: 422,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,703.74 : 656,815.56 = 306,233.08 : x
  2. Step 2: Convert to fraction form
    475,703.74/656,815.56 = 306,233.08/x
  3. Step 3: Cross multiply
    475,703.74x = 656,815.56 × 306,233.08
  4. Step 4: Simplify right side
    475,703.74x = 201,138,651,930.73
  5. Step 5: Solve for x
    x = 201,138,651,930.73/475,703.74
  6. Step 6: Final answer
    x = 422,823.36

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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.