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Finding the Fourth Proportional to 545,942.80, 817,747.80 and 452,630.80

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Solution

The fourth proportional to 545,942.80, 817,747.80 and 452,630.80 is: 677,979.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,942.80 : 817,747.80 = 452,630.80 : x
  2. Step 2: Convert to fraction form
    545,942.80/817,747.80 = 452,630.80/x
  3. Step 3: Cross multiply
    545,942.80x = 817,747.80 × 452,630.80
  4. Step 4: Simplify right side
    545,942.80x = 370,137,840,912.24
  5. Step 5: Solve for x
    x = 370,137,840,912.24/545,942.80
  6. Step 6: Final answer
    x = 677,979.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.