Home / 718,857.70-1,078,101.96-213,299.10

Finding the Fourth Proportional to 718,857.70, 1,078,101.96 and 213,299.10

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Solution

The fourth proportional to 718,857.70, 1,078,101.96 and 213,299.10 is: 319,893.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,857.70 : 1,078,101.96 = 213,299.10 : x
  2. Step 2: Convert to fraction form
    718,857.70/1,078,101.96 = 213,299.10/x
  3. Step 3: Cross multiply
    718,857.70x = 1,078,101.96 × 213,299.10
  4. Step 4: Simplify right side
    718,857.70x = 229,958,177,776.24
  5. Step 5: Solve for x
    x = 229,958,177,776.24/718,857.70
  6. Step 6: Final answer
    x = 319,893.88

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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.