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Finding the Fourth Proportional to 550,385.30, 758,828.61 and 356,450.37

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Solution

The fourth proportional to 550,385.30, 758,828.61 and 356,450.37 is: 491,446.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,385.30 : 758,828.61 = 356,450.37 : x
  2. Step 2: Convert to fraction form
    550,385.30/758,828.61 = 356,450.37/x
  3. Step 3: Cross multiply
    550,385.30x = 758,828.61 × 356,450.37
  4. Step 4: Simplify right side
    550,385.30x = 270,484,738,801.09
  5. Step 5: Solve for x
    x = 270,484,738,801.09/550,385.30
  6. Step 6: Final answer
    x = 491,446.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.