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Finding the Fourth Proportional to 644,520.84, 966,848.22 and 307,504.68

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Solution

The fourth proportional to 644,520.84, 966,848.22 and 307,504.68 is: 461,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,520.84 : 966,848.22 = 307,504.68 : x
  2. Step 2: Convert to fraction form
    644,520.84/966,848.22 = 307,504.68/x
  3. Step 3: Cross multiply
    644,520.84x = 966,848.22 × 307,504.68
  4. Step 4: Simplify right side
    644,520.84x = 297,310,352,499.67
  5. Step 5: Solve for x
    x = 297,310,352,499.67/644,520.84
  6. Step 6: Final answer
    x = 461,288.97

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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.