Home / 547,622.97-821,457-188,040.75

Finding the Fourth Proportional to 547,622.97, 821,457 and 188,040.75

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Solution

The fourth proportional to 547,622.97, 821,457 and 188,040.75 is: 282,068.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,622.97 : 821,457 = 188,040.75 : x
  2. Step 2: Convert to fraction form
    547,622.97/821,457 = 188,040.75/x
  3. Step 3: Cross multiply
    547,622.97x = 821,457 × 188,040.75
  4. Step 4: Simplify right side
    547,622.97x = 154,467,390,372.75
  5. Step 5: Solve for x
    x = 154,467,390,372.75/547,622.97
  6. Step 6: Final answer
    x = 282,068.87

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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.