Home / 547,606.20-821,531.70-192,631.80

Finding the Fourth Proportional to 547,606.20, 821,531.70 and 192,631.80

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Solution

The fourth proportional to 547,606.20, 821,531.70 and 192,631.80 is: 288,990.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,606.20 : 821,531.70 = 192,631.80 : x
  2. Step 2: Convert to fraction form
    547,606.20/821,531.70 = 192,631.80/x
  3. Step 3: Cross multiply
    547,606.20x = 821,531.70 × 192,631.80
  4. Step 4: Simplify right side
    547,606.20x = 158,253,130,128.06
  5. Step 5: Solve for x
    x = 158,253,130,128.06/547,606.20
  6. Step 6: Final answer
    x = 288,990.76

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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.