Home / 454,210.05-682,791.30-389,256.15

Finding the Fourth Proportional to 454,210.05, 682,791.30 and 389,256.15

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Solution

The fourth proportional to 454,210.05, 682,791.30 and 389,256.15 is: 585,149.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,210.05 : 682,791.30 = 389,256.15 : x
  2. Step 2: Convert to fraction form
    454,210.05/682,791.30 = 389,256.15/x
  3. Step 3: Cross multiply
    454,210.05x = 682,791.30 × 389,256.15
  4. Step 4: Simplify right side
    454,210.05x = 265,780,712,691.50
  5. Step 5: Solve for x
    x = 265,780,712,691.50/454,210.05
  6. Step 6: Final answer
    x = 585,149.34

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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.