Home / 718,855.21-1,078,098.20-213,296.59

Finding the Fourth Proportional to 718,855.21, 1,078,098.20 and 213,296.59

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Solution

The fourth proportional to 718,855.21, 1,078,098.20 and 213,296.59 is: 319,890.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,855.21 : 1,078,098.20 = 213,296.59 : x
  2. Step 2: Convert to fraction form
    718,855.21/1,078,098.20 = 213,296.59/x
  3. Step 3: Cross multiply
    718,855.21x = 1,078,098.20 × 213,296.59
  4. Step 4: Simplify right side
    718,855.21x = 229,954,672,025.93
  5. Step 5: Solve for x
    x = 229,954,672,025.93/718,855.21
  6. Step 6: Final answer
    x = 319,890.11

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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.