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Finding the Fourth Proportional to 545,695.48, 753,034.56 and 303,975.68

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Solution

The fourth proportional to 545,695.48, 753,034.56 and 303,975.68 is: 419,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,695.48 : 753,034.56 = 303,975.68 : x
  2. Step 2: Convert to fraction form
    545,695.48/753,034.56 = 303,975.68/x
  3. Step 3: Cross multiply
    545,695.48x = 753,034.56 × 303,975.68
  4. Step 4: Simplify right side
    545,695.48x = 228,904,192,439.50
  5. Step 5: Solve for x
    x = 228,904,192,439.50/545,695.48
  6. Step 6: Final answer
    x = 419,472.40

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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.