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Finding the Fourth Proportional to 496,995.67, 685,836.01 and 303,726.72

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Solution

The fourth proportional to 496,995.67, 685,836.01 and 303,726.72 is: 419,131.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,995.67 : 685,836.01 = 303,726.72 : x
  2. Step 2: Convert to fraction form
    496,995.67/685,836.01 = 303,726.72/x
  3. Step 3: Cross multiply
    496,995.67x = 685,836.01 × 303,726.72
  4. Step 4: Simplify right side
    496,995.67x = 208,306,721,775.19
  5. Step 5: Solve for x
    x = 208,306,721,775.19/496,995.67
  6. Step 6: Final answer
    x = 419,131.86

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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.