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Finding the Fourth Proportional to 547,011.80, 820,812.22 and 266,529.08

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Solution

The fourth proportional to 547,011.80, 820,812.22 and 266,529.08 is: 399,937.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,011.80 : 820,812.22 = 266,529.08 : x
  2. Step 2: Convert to fraction form
    547,011.80/820,812.22 = 266,529.08/x
  3. Step 3: Cross multiply
    547,011.80x = 820,812.22 × 266,529.08
  4. Step 4: Simplify right side
    547,011.80x = 218,770,325,849.36
  5. Step 5: Solve for x
    x = 218,770,325,849.36/547,011.80
  6. Step 6: Final answer
    x = 399,937.12

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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.