Home / 694,648.40-1,042,030.20-221,320.40

Finding the Fourth Proportional to 694,648.40, 1,042,030.20 and 221,320.40

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Solution

The fourth proportional to 694,648.40, 1,042,030.20 and 221,320.40 is: 331,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,648.40 : 1,042,030.20 = 221,320.40 : x
  2. Step 2: Convert to fraction form
    694,648.40/1,042,030.20 = 221,320.40/x
  3. Step 3: Cross multiply
    694,648.40x = 1,042,030.20 × 221,320.40
  4. Step 4: Simplify right side
    694,648.40x = 230,622,540,676.08
  5. Step 5: Solve for x
    x = 230,622,540,676.08/694,648.40
  6. Step 6: Final answer
    x = 331,998.95

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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.