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Finding the Fourth Proportional to 644,596.49, 966,562.73 and 289,305.93

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Solution

The fourth proportional to 644,596.49, 966,562.73 and 289,305.93 is: 433,809.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,596.49 : 966,562.73 = 289,305.93 : x
  2. Step 2: Convert to fraction form
    644,596.49/966,562.73 = 289,305.93/x
  3. Step 3: Cross multiply
    644,596.49x = 966,562.73 × 289,305.93
  4. Step 4: Simplify right side
    644,596.49x = 279,632,329,505.99
  5. Step 5: Solve for x
    x = 279,632,329,505.99/644,596.49
  6. Step 6: Final answer
    x = 433,809.89

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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.