Home / 919,828.82-1,379,743.62-413,798.74

Finding the Fourth Proportional to 919,828.82, 1,379,743.62 and 413,798.74

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Solution

The fourth proportional to 919,828.82, 1,379,743.62 and 413,798.74 is: 620,698.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,828.82 : 1,379,743.62 = 413,798.74 : x
  2. Step 2: Convert to fraction form
    919,828.82/1,379,743.62 = 413,798.74/x
  3. Step 3: Cross multiply
    919,828.82x = 1,379,743.62 × 413,798.74
  4. Step 4: Simplify right side
    919,828.82x = 570,936,166,477.94
  5. Step 5: Solve for x
    x = 570,936,166,477.94/919,828.82
  6. Step 6: Final answer
    x = 620,698.28

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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.