Home / 769,486.64-1,154,536.96-320,517.12

Finding the Fourth Proportional to 769,486.64, 1,154,536.96 and 320,517.12

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Solution

The fourth proportional to 769,486.64, 1,154,536.96 and 320,517.12 is: 480,903.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,486.64 : 1,154,536.96 = 320,517.12 : x
  2. Step 2: Convert to fraction form
    769,486.64/1,154,536.96 = 320,517.12/x
  3. Step 3: Cross multiply
    769,486.64x = 1,154,536.96 × 320,517.12
  4. Step 4: Simplify right side
    769,486.64x = 370,048,861,352.76
  5. Step 5: Solve for x
    x = 370,048,861,352.76/769,486.64
  6. Step 6: Final answer
    x = 480,903.56

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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.