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Finding the Fourth Proportional to 901,717, 1,244,369.46 and 499,309

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Solution

The fourth proportional to 901,717, 1,244,369.46 and 499,309 is: 689,046.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,717 : 1,244,369.46 = 499,309 : x
  2. Step 2: Convert to fraction form
    901,717/1,244,369.46 = 499,309/x
  3. Step 3: Cross multiply
    901,717x = 1,244,369.46 × 499,309
  4. Step 4: Simplify right side
    901,717x = 621,324,870,703.14
  5. Step 5: Solve for x
    x = 621,324,870,703.14/901,717
  6. Step 6: Final answer
    x = 689,046.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.