Home / 814,981.80-1,222,472.70-647,020.20

Finding the Fourth Proportional to 814,981.80, 1,222,472.70 and 647,020.20

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Solution

The fourth proportional to 814,981.80, 1,222,472.70 and 647,020.20 is: 970,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,981.80 : 1,222,472.70 = 647,020.20 : x
  2. Step 2: Convert to fraction form
    814,981.80/1,222,472.70 = 647,020.20/x
  3. Step 3: Cross multiply
    814,981.80x = 1,222,472.70 × 647,020.20
  4. Step 4: Simplify right side
    814,981.80x = 790,964,530,848.54
  5. Step 5: Solve for x
    x = 790,964,530,848.54/814,981.80
  6. Step 6: Final answer
    x = 970,530.30

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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.