Home / 454,939.59-682,384.80-139,397.43

Finding the Fourth Proportional to 454,939.59, 682,384.80 and 139,397.43

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Solution

The fourth proportional to 454,939.59, 682,384.80 and 139,397.43 is: 209,088.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,939.59 : 682,384.80 = 139,397.43 : x
  2. Step 2: Convert to fraction form
    454,939.59/682,384.80 = 139,397.43/x
  3. Step 3: Cross multiply
    454,939.59x = 682,384.80 × 139,397.43
  4. Step 4: Simplify right side
    454,939.59x = 95,122,687,391.06
  5. Step 5: Solve for x
    x = 95,122,687,391.06/454,939.59
  6. Step 6: Final answer
    x = 209,088.61

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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.