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Finding the Fourth Proportional to 499,551.38, 689,379.41 and 270,107.03

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Solution

The fourth proportional to 499,551.38, 689,379.41 and 270,107.03 is: 372,746.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,551.38 : 689,379.41 = 270,107.03 : x
  2. Step 2: Convert to fraction form
    499,551.38/689,379.41 = 270,107.03/x
  3. Step 3: Cross multiply
    499,551.38x = 689,379.41 × 270,107.03
  4. Step 4: Simplify right side
    499,551.38x = 186,206,220,180.82
  5. Step 5: Solve for x
    x = 186,206,220,180.82/499,551.38
  6. Step 6: Final answer
    x = 372,746.89

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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.