Home / 694,686.40-1,042,087.20-221,358.40

Finding the Fourth Proportional to 694,686.40, 1,042,087.20 and 221,358.40

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Solution

The fourth proportional to 694,686.40, 1,042,087.20 and 221,358.40 is: 332,055.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,686.40 : 1,042,087.20 = 221,358.40 : x
  2. Step 2: Convert to fraction form
    694,686.40/1,042,087.20 = 221,358.40/x
  3. Step 3: Cross multiply
    694,686.40x = 1,042,087.20 × 221,358.40
  4. Step 4: Simplify right side
    694,686.40x = 230,674,755,252.48
  5. Step 5: Solve for x
    x = 230,674,755,252.48/694,686.40
  6. Step 6: Final answer
    x = 332,055.95

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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.