Home / 694,651.40-1,042,005.90-221,323.40

Finding the Fourth Proportional to 694,651.40, 1,042,005.90 and 221,323.40

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Solution

The fourth proportional to 694,651.40, 1,042,005.90 and 221,323.40 is: 331,994.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,651.40 : 1,042,005.90 = 221,323.40 : x
  2. Step 2: Convert to fraction form
    694,651.40/1,042,005.90 = 221,323.40/x
  3. Step 3: Cross multiply
    694,651.40x = 1,042,005.90 × 221,323.40
  4. Step 4: Simplify right side
    694,651.40x = 230,620,288,608.06
  5. Step 5: Solve for x
    x = 230,620,288,608.06/694,651.40
  6. Step 6: Final answer
    x = 331,994.28

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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.