Home / 718,837.65-1,078,071.93-213,279.03

Finding the Fourth Proportional to 718,837.65, 1,078,071.93 and 213,279.03

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Solution

The fourth proportional to 718,837.65, 1,078,071.93 and 213,279.03 is: 319,863.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,837.65 : 1,078,071.93 = 213,279.03 : x
  2. Step 2: Convert to fraction form
    718,837.65/1,078,071.93 = 213,279.03/x
  3. Step 3: Cross multiply
    718,837.65x = 1,078,071.93 × 213,279.03
  4. Step 4: Simplify right side
    718,837.65x = 229,930,135,500.63
  5. Step 5: Solve for x
    x = 229,930,135,500.63/718,837.65
  6. Step 6: Final answer
    x = 319,863.79

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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.