Home / 718,859.20-1,078,104.21-213,300.58

Finding the Fourth Proportional to 718,859.20, 1,078,104.21 and 213,300.58

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Solution

The fourth proportional to 718,859.20, 1,078,104.21 and 213,300.58 is: 319,896.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,859.20 : 1,078,104.21 = 213,300.58 : x
  2. Step 2: Convert to fraction form
    718,859.20/1,078,104.21 = 213,300.58/x
  3. Step 3: Cross multiply
    718,859.20x = 1,078,104.21 × 213,300.58
  4. Step 4: Simplify right side
    718,859.20x = 229,960,253,293.44
  5. Step 5: Solve for x
    x = 229,960,253,293.44/718,859.20
  6. Step 6: Final answer
    x = 319,896.10

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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.