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Finding the Fourth Proportional to 1,786,771.23, 2,678,972.03 and 649,398.39

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Solution

The fourth proportional to 1,786,771.23, 2,678,972.03 and 649,398.39 is: 973,666.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,771.23 : 2,678,972.03 = 649,398.39 : x
  2. Step 2: Convert to fraction form
    1,786,771.23/2,678,972.03 = 649,398.39/x
  3. Step 3: Cross multiply
    1,786,771.23x = 2,678,972.03 × 649,398.39
  4. Step 4: Simplify right side
    1,786,771.23x = 1,739,720,123,137.03
  5. Step 5: Solve for x
    x = 1,739,720,123,137.03/1,786,771.23
  6. Step 6: Final answer
    x = 973,666.97

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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.