Home / 1,214,715.69-1,821,886.62-405,114.36

Finding the Fourth Proportional to 1,214,715.69, 1,821,886.62 and 405,114.36

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Solution

The fourth proportional to 1,214,715.69, 1,821,886.62 and 405,114.36 is: 607,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,715.69 : 1,821,886.62 = 405,114.36 : x
  2. Step 2: Convert to fraction form
    1,214,715.69/1,821,886.62 = 405,114.36/x
  3. Step 3: Cross multiply
    1,214,715.69x = 1,821,886.62 × 405,114.36
  4. Step 4: Simplify right side
    1,214,715.69x = 738,072,432,053.86
  5. Step 5: Solve for x
    x = 738,072,432,053.86/1,214,715.69
  6. Step 6: Final answer
    x = 607,609.20

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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.