Home / 449,634.17-674,783.86-212,977.38

Finding the Fourth Proportional to 449,634.17, 674,783.86 and 212,977.38

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Solution

The fourth proportional to 449,634.17, 674,783.86 and 212,977.38 is: 319,623.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,634.17 : 674,783.86 = 212,977.38 : x
  2. Step 2: Convert to fraction form
    449,634.17/674,783.86 = 212,977.38/x
  3. Step 3: Cross multiply
    449,634.17x = 674,783.86 × 212,977.38
  4. Step 4: Simplify right side
    449,634.17x = 143,713,698,569.09
  5. Step 5: Solve for x
    x = 143,713,698,569.09/449,634.17
  6. Step 6: Final answer
    x = 319,623.61

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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.