Home / 1,214,830.53-1,822,252.61-405,212.72

Finding the Fourth Proportional to 1,214,830.53, 1,822,252.61 and 405,212.72

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Solution

The fourth proportional to 1,214,830.53, 1,822,252.61 and 405,212.72 is: 607,821.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,830.53 : 1,822,252.61 = 405,212.72 : x
  2. Step 2: Convert to fraction form
    1,214,830.53/1,822,252.61 = 405,212.72/x
  3. Step 3: Cross multiply
    1,214,830.53x = 1,822,252.61 × 405,212.72
  4. Step 4: Simplify right side
    1,214,830.53x = 738,399,943,331.27
  5. Step 5: Solve for x
    x = 738,399,943,331.27/1,214,830.53
  6. Step 6: Final answer
    x = 607,821.36

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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.