Home / 1,176,039.72-1,764,474.30-428,161.32

Finding the Fourth Proportional to 1,176,039.72, 1,764,474.30 and 428,161.32

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Solution

The fourth proportional to 1,176,039.72, 1,764,474.30 and 428,161.32 is: 642,392.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176,039.72 : 1,764,474.30 = 428,161.32 : x
  2. Step 2: Convert to fraction form
    1,176,039.72/1,764,474.30 = 428,161.32/x
  3. Step 3: Cross multiply
    1,176,039.72x = 1,764,474.30 × 428,161.32
  4. Step 4: Simplify right side
    1,176,039.72x = 755,479,645,394.08
  5. Step 5: Solve for x
    x = 755,479,645,394.08/1,176,039.72
  6. Step 6: Final answer
    x = 642,392.97

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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.