Home / 718,189.85-1,077,442.22-212,790.56

Finding the Fourth Proportional to 718,189.85, 1,077,442.22 and 212,790.56

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Solution

The fourth proportional to 718,189.85, 1,077,442.22 and 212,790.56 is: 319,232.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,189.85 : 1,077,442.22 = 212,790.56 : x
  2. Step 2: Convert to fraction form
    718,189.85/1,077,442.22 = 212,790.56/x
  3. Step 3: Cross multiply
    718,189.85x = 1,077,442.22 × 212,790.56
  4. Step 4: Simplify right side
    718,189.85x = 229,269,528,506.21
  5. Step 5: Solve for x
    x = 229,269,528,506.21/718,189.85
  6. Step 6: Final answer
    x = 319,232.48

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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.