Home / 531,912.16-734,107.04-305,601.44

Finding the Fourth Proportional to 531,912.16, 734,107.04 and 305,601.44

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Solution

The fourth proportional to 531,912.16, 734,107.04 and 305,601.44 is: 421,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,912.16 : 734,107.04 = 305,601.44 : x
  2. Step 2: Convert to fraction form
    531,912.16/734,107.04 = 305,601.44/x
  3. Step 3: Cross multiply
    531,912.16x = 734,107.04 × 305,601.44
  4. Step 4: Simplify right side
    531,912.16x = 224,344,168,538.14
  5. Step 5: Solve for x
    x = 224,344,168,538.14/531,912.16
  6. Step 6: Final answer
    x = 421,769.20

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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.