Home / 454,938.04-682,382.45-139,395.86

Finding the Fourth Proportional to 454,938.04, 682,382.45 and 139,395.86

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Solution

The fourth proportional to 454,938.04, 682,382.45 and 139,395.86 is: 209,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,938.04 : 682,382.45 = 139,395.86 : x
  2. Step 2: Convert to fraction form
    454,938.04/682,382.45 = 139,395.86/x
  3. Step 3: Cross multiply
    454,938.04x = 682,382.45 × 139,395.86
  4. Step 4: Simplify right side
    454,938.04x = 95,121,287,769.68
  5. Step 5: Solve for x
    x = 95,121,287,769.68/454,938.04
  6. Step 6: Final answer
    x = 209,086.25

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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.