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Finding the Fourth Proportional to 531,620.28, 796,527.72 and 320,815.26

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Solution

The fourth proportional to 531,620.28, 796,527.72 and 320,815.26 is: 480,678.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,620.28 : 796,527.72 = 320,815.26 : x
  2. Step 2: Convert to fraction form
    531,620.28/796,527.72 = 320,815.26/x
  3. Step 3: Cross multiply
    531,620.28x = 796,527.72 × 320,815.26
  4. Step 4: Simplify right side
    531,620.28x = 255,538,247,589.01
  5. Step 5: Solve for x
    x = 255,538,247,589.01/531,620.28
  6. Step 6: Final answer
    x = 480,678.14

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1.5x scale

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.