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Finding the Fourth Proportional to 477,936.78, 716,694.83 and 253,245.42

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Solution

The fourth proportional to 477,936.78, 716,694.83 and 253,245.42 is: 379,756.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,936.78 : 716,694.83 = 253,245.42 : x
  2. Step 2: Convert to fraction form
    477,936.78/716,694.83 = 253,245.42/x
  3. Step 3: Cross multiply
    477,936.78x = 716,694.83 × 253,245.42
  4. Step 4: Simplify right side
    477,936.78x = 181,499,681,968.95
  5. Step 5: Solve for x
    x = 181,499,681,968.95/477,936.78
  6. Step 6: Final answer
    x = 379,756.67

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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.