Home / 718,832.39-1,078,064.05-213,273.76

Finding the Fourth Proportional to 718,832.39, 1,078,064.05 and 213,273.76

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Solution

The fourth proportional to 718,832.39, 1,078,064.05 and 213,273.76 is: 319,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,832.39 : 1,078,064.05 = 213,273.76 : x
  2. Step 2: Convert to fraction form
    718,832.39/1,078,064.05 = 213,273.76/x
  3. Step 3: Cross multiply
    718,832.39x = 1,078,064.05 × 213,273.76
  4. Step 4: Simplify right side
    718,832.39x = 229,922,776,518.19
  5. Step 5: Solve for x
    x = 229,922,776,518.19/718,832.39
  6. Step 6: Final answer
    x = 319,855.90

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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.