Home / 647,914.44-971,864.64-221,446.20

Finding the Fourth Proportional to 647,914.44, 971,864.64 and 221,446.20

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Solution

The fourth proportional to 647,914.44, 971,864.64 and 221,446.20 is: 332,166.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,914.44 : 971,864.64 = 221,446.20 : x
  2. Step 2: Convert to fraction form
    647,914.44/971,864.64 = 221,446.20/x
  3. Step 3: Cross multiply
    647,914.44x = 971,864.64 × 221,446.20
  4. Step 4: Simplify right side
    647,914.44x = 215,215,731,442.37
  5. Step 5: Solve for x
    x = 215,215,731,442.37/647,914.44
  6. Step 6: Final answer
    x = 332,166.90

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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.