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Finding the Fourth Proportional to 494,717.47, 682,710.33 and 279,852.96

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Solution

The fourth proportional to 494,717.47, 682,710.33 and 279,852.96 is: 386,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,717.47 : 682,710.33 = 279,852.96 : x
  2. Step 2: Convert to fraction form
    494,717.47/682,710.33 = 279,852.96/x
  3. Step 3: Cross multiply
    494,717.47x = 682,710.33 × 279,852.96
  4. Step 4: Simplify right side
    494,717.47x = 191,058,506,673.08
  5. Step 5: Solve for x
    x = 191,058,506,673.08/494,717.47
  6. Step 6: Final answer
    x = 386,197.21

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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.