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Finding the Fourth Proportional to 641,956.32, 962,363.43 and 304,788.96

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Solution

The fourth proportional to 641,956.32, 962,363.43 and 304,788.96 is: 456,912.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,956.32 : 962,363.43 = 304,788.96 : x
  2. Step 2: Convert to fraction form
    641,956.32/962,363.43 = 304,788.96/x
  3. Step 3: Cross multiply
    641,956.32x = 962,363.43 × 304,788.96
  4. Step 4: Simplify right side
    641,956.32x = 293,317,748,971.73
  5. Step 5: Solve for x
    x = 293,317,748,971.73/641,956.32
  6. Step 6: Final answer
    x = 456,912.32

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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.