Home / 879,414.60-1,320,288.30-702,121.80

Finding the Fourth Proportional to 879,414.60, 1,320,288.30 and 702,121.80

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Solution

The fourth proportional to 879,414.60, 1,320,288.30 and 702,121.80 is: 1,054,113.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,414.60 : 1,320,288.30 = 702,121.80 : x
  2. Step 2: Convert to fraction form
    879,414.60/1,320,288.30 = 702,121.80/x
  3. Step 3: Cross multiply
    879,414.60x = 1,320,288.30 × 702,121.80
  4. Step 4: Simplify right side
    879,414.60x = 927,003,197,714.94
  5. Step 5: Solve for x
    x = 927,003,197,714.94/879,414.60
  6. Step 6: Final answer
    x = 1,054,113.95

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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.