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Finding the Fourth Proportional to 485,119.29, 726,792.22 and 351,668.55

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Solution

The fourth proportional to 485,119.29, 726,792.22 and 351,668.55 is: 526,860.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,119.29 : 726,792.22 = 351,668.55 : x
  2. Step 2: Convert to fraction form
    485,119.29/726,792.22 = 351,668.55/x
  3. Step 3: Cross multiply
    485,119.29x = 726,792.22 × 351,668.55
  4. Step 4: Simplify right side
    485,119.29x = 255,589,966,158.68
  5. Step 5: Solve for x
    x = 255,589,966,158.68/485,119.29
  6. Step 6: Final answer
    x = 526,860.04

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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.