Home / 981,051.84-1,471,266.72-419,935.68

Finding the Fourth Proportional to 981,051.84, 1,471,266.72 and 419,935.68

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Solution

The fourth proportional to 981,051.84, 1,471,266.72 and 419,935.68 is: 629,770.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,051.84 : 1,471,266.72 = 419,935.68 : x
  2. Step 2: Convert to fraction form
    981,051.84/1,471,266.72 = 419,935.68/x
  3. Step 3: Cross multiply
    981,051.84x = 1,471,266.72 × 419,935.68
  4. Step 4: Simplify right side
    981,051.84x = 617,837,390,524.57
  5. Step 5: Solve for x
    x = 617,837,390,524.57/981,051.84
  6. Step 6: Final answer
    x = 629,770.38

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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.