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Finding the Fourth Proportional to 496,972.07, 685,803.29 and 303,703.28

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Solution

The fourth proportional to 496,972.07, 685,803.29 and 303,703.28 is: 419,099.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,972.07 : 685,803.29 = 303,703.28 : x
  2. Step 2: Convert to fraction form
    496,972.07/685,803.29 = 303,703.28/x
  3. Step 3: Cross multiply
    496,972.07x = 685,803.29 × 303,703.28
  4. Step 4: Simplify right side
    496,972.07x = 208,280,708,607.79
  5. Step 5: Solve for x
    x = 208,280,708,607.79/496,972.07
  6. Step 6: Final answer
    x = 419,099.42

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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.