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Finding the Fourth Proportional to 644,487.84, 966,498.48 and 307,514.88

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Solution

The fourth proportional to 644,487.84, 966,498.48 and 307,514.88 is: 461,161.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,487.84 : 966,498.48 = 307,514.88 : x
  2. Step 2: Convert to fraction form
    644,487.84/966,498.48 = 307,514.88/x
  3. Step 3: Cross multiply
    644,487.84x = 966,498.48 × 307,514.88
  4. Step 4: Simplify right side
    644,487.84x = 297,212,664,097.38
  5. Step 5: Solve for x
    x = 297,212,664,097.38/644,487.84
  6. Step 6: Final answer
    x = 461,161.01

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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.