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Finding the Fourth Proportional to 503,389.09, 754,706.48 and 303,662.91

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Solution

The fourth proportional to 503,389.09, 754,706.48 and 303,662.91 is: 455,266.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,389.09 : 754,706.48 = 303,662.91 : x
  2. Step 2: Convert to fraction form
    503,389.09/754,706.48 = 303,662.91/x
  3. Step 3: Cross multiply
    503,389.09x = 754,706.48 × 303,662.91
  4. Step 4: Simplify right side
    503,389.09x = 229,176,365,912.66
  5. Step 5: Solve for x
    x = 229,176,365,912.66/503,389.09
  6. Step 6: Final answer
    x = 455,266.86

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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.