Home / 718,078.30-1,077,144.78-268,751.86

Finding the Fourth Proportional to 718,078.30, 1,077,144.78 and 268,751.86

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Solution

The fourth proportional to 718,078.30, 1,077,144.78 and 268,751.86 is: 403,138.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,078.30 : 1,077,144.78 = 268,751.86 : x
  2. Step 2: Convert to fraction form
    718,078.30/1,077,144.78 = 268,751.86/x
  3. Step 3: Cross multiply
    718,078.30x = 1,077,144.78 × 268,751.86
  4. Step 4: Simplify right side
    718,078.30x = 289,484,663,114.29
  5. Step 5: Solve for x
    x = 289,484,663,114.29/718,078.30
  6. Step 6: Final answer
    x = 403,138.02

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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.