Home / 1,227,956.20-1,693,970.04-820,604.44

Finding the Fourth Proportional to 1,227,956.20, 1,693,970.04 and 820,604.44

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Solution

The fourth proportional to 1,227,956.20, 1,693,970.04 and 820,604.44 is: 1,132,026.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,956.20 : 1,693,970.04 = 820,604.44 : x
  2. Step 2: Convert to fraction form
    1,227,956.20/1,693,970.04 = 820,604.44/x
  3. Step 3: Cross multiply
    1,227,956.20x = 1,693,970.04 × 820,604.44
  4. Step 4: Simplify right side
    1,227,956.20x = 1,390,079,336,050.98
  5. Step 5: Solve for x
    x = 1,390,079,336,050.98/1,227,956.20
  6. Step 6: Final answer
    x = 1,132,026.81

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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.