Home / 718,891.74-1,078,496.37-213,493.86

Finding the Fourth Proportional to 718,891.74, 1,078,496.37 and 213,493.86

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Solution

The fourth proportional to 718,891.74, 1,078,496.37 and 213,493.86 is: 320,287.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,891.74 : 1,078,496.37 = 213,493.86 : x
  2. Step 2: Convert to fraction form
    718,891.74/1,078,496.37 = 213,493.86/x
  3. Step 3: Cross multiply
    718,891.74x = 1,078,496.37 × 213,493.86
  4. Step 4: Simplify right side
    718,891.74x = 230,252,353,027.29
  5. Step 5: Solve for x
    x = 230,252,353,027.29/718,891.74
  6. Step 6: Final answer
    x = 320,287.94

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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.