Home / 718,078.11-1,077,144.50-268,751.67

Finding the Fourth Proportional to 718,078.11, 1,077,144.50 and 268,751.67

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Solution

The fourth proportional to 718,078.11, 1,077,144.50 and 268,751.67 is: 403,137.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,078.11 : 1,077,144.50 = 268,751.67 : x
  2. Step 2: Convert to fraction form
    718,078.11/1,077,144.50 = 268,751.67/x
  3. Step 3: Cross multiply
    718,078.11x = 1,077,144.50 × 268,751.67
  4. Step 4: Simplify right side
    718,078.11x = 289,484,383,206.32
  5. Step 5: Solve for x
    x = 289,484,383,206.32/718,078.11
  6. Step 6: Final answer
    x = 403,137.74

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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.