Home / 494,800.83-682,828.10-279,985.79

Finding the Fourth Proportional to 494,800.83, 682,828.10 and 279,985.79

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Solution

The fourth proportional to 494,800.83, 682,828.10 and 279,985.79 is: 386,382.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,800.83 : 682,828.10 = 279,985.79 : x
  2. Step 2: Convert to fraction form
    494,800.83/682,828.10 = 279,985.79/x
  3. Step 3: Cross multiply
    494,800.83x = 682,828.10 × 279,985.79
  4. Step 4: Simplify right side
    494,800.83x = 191,182,160,198.63
  5. Step 5: Solve for x
    x = 191,182,160,198.63/494,800.83
  6. Step 6: Final answer
    x = 386,382.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.