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Finding the Fourth Proportional to 545,709.52, 753,101.82 and 303,992.02

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Solution

The fourth proportional to 545,709.52, 753,101.82 and 303,992.02 is: 419,521.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,709.52 : 753,101.82 = 303,992.02 : x
  2. Step 2: Convert to fraction form
    545,709.52/753,101.82 = 303,992.02/x
  3. Step 3: Cross multiply
    545,709.52x = 753,101.82 × 303,992.02
  4. Step 4: Simplify right side
    545,709.52x = 228,936,943,527.48
  5. Step 5: Solve for x
    x = 228,936,943,527.48/545,709.52
  6. Step 6: Final answer
    x = 419,521.62

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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.