Home / 547,074.40-820,534.80-173,135.20

Finding the Fourth Proportional to 547,074.40, 820,534.80 and 173,135.20

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Solution

The fourth proportional to 547,074.40, 820,534.80 and 173,135.20 is: 259,678.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,074.40 : 820,534.80 = 173,135.20 : x
  2. Step 2: Convert to fraction form
    547,074.40/820,534.80 = 173,135.20/x
  3. Step 3: Cross multiply
    547,074.40x = 820,534.80 × 173,135.20
  4. Step 4: Simplify right side
    547,074.40x = 142,063,456,704.96
  5. Step 5: Solve for x
    x = 142,063,456,704.96/547,074.40
  6. Step 6: Final answer
    x = 259,678.49

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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.