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Finding the Fourth Proportional to 545,651.04, 753,021.66 and 303,933.72

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Solution

The fourth proportional to 545,651.04, 753,021.66 and 303,933.72 is: 419,441.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,651.04 : 753,021.66 = 303,933.72 : x
  2. Step 2: Convert to fraction form
    545,651.04/753,021.66 = 303,933.72/x
  3. Step 3: Cross multiply
    545,651.04x = 753,021.66 × 303,933.72
  4. Step 4: Simplify right side
    545,651.04x = 228,868,670,599.27
  5. Step 5: Solve for x
    x = 228,868,670,599.27/545,651.04
  6. Step 6: Final answer
    x = 419,441.47

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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.