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Finding the Fourth Proportional to 510,128.77, 764,352.38 and 296,296.42

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Solution

The fourth proportional to 510,128.77, 764,352.38 and 296,296.42 is: 443,956.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,128.77 : 764,352.38 = 296,296.42 : x
  2. Step 2: Convert to fraction form
    510,128.77/764,352.38 = 296,296.42/x
  3. Step 3: Cross multiply
    510,128.77x = 764,352.38 × 296,296.42
  4. Step 4: Simplify right side
    510,128.77x = 226,474,873,812.48
  5. Step 5: Solve for x
    x = 226,474,873,812.48/510,128.77
  6. Step 6: Final answer
    x = 443,956.29

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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.