Home / 557,836.13-769,808.10-303,185.50

Finding the Fourth Proportional to 557,836.13, 769,808.10 and 303,185.50

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Solution

The fourth proportional to 557,836.13, 769,808.10 and 303,185.50 is: 418,392.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,836.13 : 769,808.10 = 303,185.50 : x
  2. Step 2: Convert to fraction form
    557,836.13/769,808.10 = 303,185.50/x
  3. Step 3: Cross multiply
    557,836.13x = 769,808.10 × 303,185.50
  4. Step 4: Simplify right side
    557,836.13x = 233,394,652,914.98
  5. Step 5: Solve for x
    x = 233,394,652,914.98/557,836.13
  6. Step 6: Final answer
    x = 418,392.86

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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.