Home / 547,954.20-821,348.10-210,864.60

Finding the Fourth Proportional to 547,954.20, 821,348.10 and 210,864.60

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Solution

The fourth proportional to 547,954.20, 821,348.10 and 210,864.60 is: 316,072.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,954.20 : 821,348.10 = 210,864.60 : x
  2. Step 2: Convert to fraction form
    547,954.20/821,348.10 = 210,864.60/x
  3. Step 3: Cross multiply
    547,954.20x = 821,348.10 × 210,864.60
  4. Step 4: Simplify right side
    547,954.20x = 173,193,238,567.26
  5. Step 5: Solve for x
    x = 173,193,238,567.26/547,954.20
  6. Step 6: Final answer
    x = 316,072.47

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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.