Home / 836,462.15-1,254,720.50-398,186.78

Finding the Fourth Proportional to 836,462.15, 1,254,720.50 and 398,186.78

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Solution

The fourth proportional to 836,462.15, 1,254,720.50 and 398,186.78 is: 597,293.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,462.15 : 1,254,720.50 = 398,186.78 : x
  2. Step 2: Convert to fraction form
    836,462.15/1,254,720.50 = 398,186.78/x
  3. Step 3: Cross multiply
    836,462.15x = 1,254,720.50 × 398,186.78
  4. Step 4: Simplify right side
    836,462.15x = 499,613,115,694.99
  5. Step 5: Solve for x
    x = 499,613,115,694.99/836,462.15
  6. Step 6: Final answer
    x = 597,293.15

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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.