Home / 1,179,890.56-1,628,297.58-663,668.50

Finding the Fourth Proportional to 1,179,890.56, 1,628,297.58 and 663,668.50

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Solution

The fourth proportional to 1,179,890.56, 1,628,297.58 and 663,668.50 is: 915,889.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,890.56 : 1,628,297.58 = 663,668.50 : x
  2. Step 2: Convert to fraction form
    1,179,890.56/1,628,297.58 = 663,668.50/x
  3. Step 3: Cross multiply
    1,179,890.56x = 1,628,297.58 × 663,668.50
  4. Step 4: Simplify right side
    1,179,890.56x = 1,080,649,812,472.23
  5. Step 5: Solve for x
    x = 1,080,649,812,472.23/1,179,890.56
  6. Step 6: Final answer
    x = 915,889.87

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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.