Home / 454,937.79-682,382.07-139,395.61

Finding the Fourth Proportional to 454,937.79, 682,382.07 and 139,395.61

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Solution

The fourth proportional to 454,937.79, 682,382.07 and 139,395.61 is: 209,085.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,937.79 : 682,382.07 = 139,395.61 : x
  2. Step 2: Convert to fraction form
    454,937.79/682,382.07 = 139,395.61/x
  3. Step 3: Cross multiply
    454,937.79x = 682,382.07 × 139,395.61
  4. Step 4: Simplify right side
    454,937.79x = 95,121,064,900.71
  5. Step 5: Solve for x
    x = 95,121,064,900.71/454,937.79
  6. Step 6: Final answer
    x = 209,085.87

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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.