Home / 547,823.13-821,771.82-168,720.45

Finding the Fourth Proportional to 547,823.13, 821,771.82 and 168,720.45

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Solution

The fourth proportional to 547,823.13, 821,771.82 and 168,720.45 is: 253,092.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,823.13 : 821,771.82 = 168,720.45 : x
  2. Step 2: Convert to fraction form
    547,823.13/821,771.82 = 168,720.45/x
  3. Step 3: Cross multiply
    547,823.13x = 821,771.82 × 168,720.45
  4. Step 4: Simplify right side
    547,823.13x = 138,649,711,267.72
  5. Step 5: Solve for x
    x = 138,649,711,267.72/547,823.13
  6. Step 6: Final answer
    x = 253,092.11

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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.