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Finding the Fourth Proportional to 656,519.68, 984,312.96 and 336,768

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Solution

The fourth proportional to 656,519.68, 984,312.96 and 336,768 is: 504,912.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,519.68 : 984,312.96 = 336,768 : x
  2. Step 2: Convert to fraction form
    656,519.68/984,312.96 = 336,768/x
  3. Step 3: Cross multiply
    656,519.68x = 984,312.96 × 336,768
  4. Step 4: Simplify right side
    656,519.68x = 331,485,106,913.28
  5. Step 5: Solve for x
    x = 331,485,106,913.28/656,519.68
  6. Step 6: Final answer
    x = 504,912.67

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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.