Home / 1,427,674.04-1,970,245.32-783,121.40

Finding the Fourth Proportional to 1,427,674.04, 1,970,245.32 and 783,121.40

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Solution

The fourth proportional to 1,427,674.04, 1,970,245.32 and 783,121.40 is: 1,080,737.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,674.04 : 1,970,245.32 = 783,121.40 : x
  2. Step 2: Convert to fraction form
    1,427,674.04/1,970,245.32 = 783,121.40/x
  3. Step 3: Cross multiply
    1,427,674.04x = 1,970,245.32 × 783,121.40
  4. Step 4: Simplify right side
    1,427,674.04x = 1,542,941,273,341.85
  5. Step 5: Solve for x
    x = 1,542,941,273,341.85/1,427,674.04
  6. Step 6: Final answer
    x = 1,080,737.78

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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.