Home / 836,115-1,254,380.82-245,139

Finding the Fourth Proportional to 836,115, 1,254,380.82 and 245,139

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Solution

The fourth proportional to 836,115, 1,254,380.82 and 245,139 is: 367,769.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,115 : 1,254,380.82 = 245,139 : x
  2. Step 2: Convert to fraction form
    836,115/1,254,380.82 = 245,139/x
  3. Step 3: Cross multiply
    836,115x = 1,254,380.82 × 245,139
  4. Step 4: Simplify right side
    836,115x = 307,497,659,833.98
  5. Step 5: Solve for x
    x = 307,497,659,833.98/836,115
  6. Step 6: Final answer
    x = 367,769.58

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1.5x scale

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.