Home / 718,300.26-1,077,460.92-212,912.40

Finding the Fourth Proportional to 718,300.26, 1,077,460.92 and 212,912.40

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Solution

The fourth proportional to 718,300.26, 1,077,460.92 and 212,912.40 is: 319,371.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,300.26 : 1,077,460.92 = 212,912.40 : x
  2. Step 2: Convert to fraction form
    718,300.26/1,077,460.92 = 212,912.40/x
  3. Step 3: Cross multiply
    718,300.26x = 1,077,460.92 × 212,912.40
  4. Step 4: Simplify right side
    718,300.26x = 229,404,790,383.41
  5. Step 5: Solve for x
    x = 229,404,790,383.41/718,300.26
  6. Step 6: Final answer
    x = 319,371.72

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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.