Home / 521,037.27-719,015.96-288,474.56

Finding the Fourth Proportional to 521,037.27, 719,015.96 and 288,474.56

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Solution

The fourth proportional to 521,037.27, 719,015.96 and 288,474.56 is: 398,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,037.27 : 719,015.96 = 288,474.56 : x
  2. Step 2: Convert to fraction form
    521,037.27/719,015.96 = 288,474.56/x
  3. Step 3: Cross multiply
    521,037.27x = 719,015.96 × 288,474.56
  4. Step 4: Simplify right side
    521,037.27x = 207,417,812,516.39
  5. Step 5: Solve for x
    x = 207,417,812,516.39/521,037.27
  6. Step 6: Final answer
    x = 398,086.33

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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.