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Finding the Fourth Proportional to 1,322,154.86, 1,824,574.48 and 718,542.86

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Solution

The fourth proportional to 1,322,154.86, 1,824,574.48 and 718,542.86 is: 991,589.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,154.86 : 1,824,574.48 = 718,542.86 : x
  2. Step 2: Convert to fraction form
    1,322,154.86/1,824,574.48 = 718,542.86/x
  3. Step 3: Cross multiply
    1,322,154.86x = 1,824,574.48 × 718,542.86
  4. Step 4: Simplify right side
    1,322,154.86x = 1,311,034,954,222.98
  5. Step 5: Solve for x
    x = 1,311,034,954,222.98/1,322,154.86
  6. Step 6: Final answer
    x = 991,589.56

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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.