Home / 1,119,411.19-1,678,591.89-408,942.37

Finding the Fourth Proportional to 1,119,411.19, 1,678,591.89 and 408,942.37

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Solution

The fourth proportional to 1,119,411.19, 1,678,591.89 and 408,942.37 is: 613,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,411.19 : 1,678,591.89 = 408,942.37 : x
  2. Step 2: Convert to fraction form
    1,119,411.19/1,678,591.89 = 408,942.37/x
  3. Step 3: Cross multiply
    1,119,411.19x = 1,678,591.89 × 408,942.37
  4. Step 4: Simplify right side
    1,119,411.19x = 686,447,345,759.38
  5. Step 5: Solve for x
    x = 686,447,345,759.38/1,119,411.19
  6. Step 6: Final answer
    x = 613,221.80

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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.