Home / 454,937.29-682,381.32-139,395.11

Finding the Fourth Proportional to 454,937.29, 682,381.32 and 139,395.11

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Solution

The fourth proportional to 454,937.29, 682,381.32 and 139,395.11 is: 209,085.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,937.29 : 682,381.32 = 139,395.11 : x
  2. Step 2: Convert to fraction form
    454,937.29/682,381.32 = 139,395.11/x
  3. Step 3: Cross multiply
    454,937.29x = 682,381.32 × 139,395.11
  4. Step 4: Simplify right side
    454,937.29x = 95,120,619,163.35
  5. Step 5: Solve for x
    x = 95,120,619,163.35/454,937.29
  6. Step 6: Final answer
    x = 209,085.12

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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.