Home / 1,340,660.70-1,850,123.82-728,814.66

Finding the Fourth Proportional to 1,340,660.70, 1,850,123.82 and 728,814.66

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Solution

The fourth proportional to 1,340,660.70, 1,850,123.82 and 728,814.66 is: 1,005,770.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,660.70 : 1,850,123.82 = 728,814.66 : x
  2. Step 2: Convert to fraction form
    1,340,660.70/1,850,123.82 = 728,814.66/x
  3. Step 3: Cross multiply
    1,340,660.70x = 1,850,123.82 × 728,814.66
  4. Step 4: Simplify right side
    1,340,660.70x = 1,348,397,362,831.20
  5. Step 5: Solve for x
    x = 1,348,397,362,831.20/1,340,660.70
  6. Step 6: Final answer
    x = 1,005,770.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.