Home / 1,426,914.70-1,969,119.84-782,340.46

Finding the Fourth Proportional to 1,426,914.70, 1,969,119.84 and 782,340.46

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Solution

The fourth proportional to 1,426,914.70, 1,969,119.84 and 782,340.46 is: 1,079,617.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,914.70 : 1,969,119.84 = 782,340.46 : x
  2. Step 2: Convert to fraction form
    1,426,914.70/1,969,119.84 = 782,340.46/x
  3. Step 3: Cross multiply
    1,426,914.70x = 1,969,119.84 × 782,340.46
  4. Step 4: Simplify right side
    1,426,914.70x = 1,540,522,121,420.73
  5. Step 5: Solve for x
    x = 1,540,522,121,420.73/1,426,914.70
  6. Step 6: Final answer
    x = 1,079,617.53

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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.