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Finding the Fourth Proportional to 579,072, 799,152.16 and 324,505.20

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Solution

The fourth proportional to 579,072, 799,152.16 and 324,505.20 is: 447,835.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,072 : 799,152.16 = 324,505.20 : x
  2. Step 2: Convert to fraction form
    579,072/799,152.16 = 324,505.20/x
  3. Step 3: Cross multiply
    579,072x = 799,152.16 × 324,505.20
  4. Step 4: Simplify right side
    579,072x = 259,329,031,511.23
  5. Step 5: Solve for x
    x = 259,329,031,511.23/579,072
  6. Step 6: Final answer
    x = 447,835.56

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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.