Home / 547,696.20-821,666.70-192,721.80

Finding the Fourth Proportional to 547,696.20, 821,666.70 and 192,721.80

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Solution

The fourth proportional to 547,696.20, 821,666.70 and 192,721.80 is: 289,125.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,696.20 : 821,666.70 = 192,721.80 : x
  2. Step 2: Convert to fraction form
    547,696.20/821,666.70 = 192,721.80/x
  3. Step 3: Cross multiply
    547,696.20x = 821,666.70 × 192,721.80
  4. Step 4: Simplify right side
    547,696.20x = 158,353,085,424.06
  5. Step 5: Solve for x
    x = 158,353,085,424.06/547,696.20
  6. Step 6: Final answer
    x = 289,125.77

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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.