Home / 718,861.70-1,078,107.96-213,303.10

Finding the Fourth Proportional to 718,861.70, 1,078,107.96 and 213,303.10

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Solution

The fourth proportional to 718,861.70, 1,078,107.96 and 213,303.10 is: 319,899.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,861.70 : 1,078,107.96 = 213,303.10 : x
  2. Step 2: Convert to fraction form
    718,861.70/1,078,107.96 = 213,303.10/x
  3. Step 3: Cross multiply
    718,861.70x = 1,078,107.96 × 213,303.10
  4. Step 4: Simplify right side
    718,861.70x = 229,963,770,002.68
  5. Step 5: Solve for x
    x = 229,963,770,002.68/718,861.70
  6. Step 6: Final answer
    x = 319,899.88

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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.