Home / 547,211.40-820,740.30-173,272.20

Finding the Fourth Proportional to 547,211.40, 820,740.30 and 173,272.20

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Solution

The fourth proportional to 547,211.40, 820,740.30 and 173,272.20 is: 259,883.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,211.40 : 820,740.30 = 173,272.20 : x
  2. Step 2: Convert to fraction form
    547,211.40/820,740.30 = 173,272.20/x
  3. Step 3: Cross multiply
    547,211.40x = 820,740.30 × 173,272.20
  4. Step 4: Simplify right side
    547,211.40x = 142,211,477,409.66
  5. Step 5: Solve for x
    x = 142,211,477,409.66/547,211.40
  6. Step 6: Final answer
    x = 259,883.98

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1.5x scale

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.