Home / 1,185,315.06-1,635,738.84-641,450.72

Finding the Fourth Proportional to 1,185,315.06, 1,635,738.84 and 641,450.72

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Solution

The fourth proportional to 1,185,315.06, 1,635,738.84 and 641,450.72 is: 885,204.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,315.06 : 1,635,738.84 = 641,450.72 : x
  2. Step 2: Convert to fraction form
    1,185,315.06/1,635,738.84 = 641,450.72/x
  3. Step 3: Cross multiply
    1,185,315.06x = 1,635,738.84 × 641,450.72
  4. Step 4: Simplify right side
    1,185,315.06x = 1,049,245,850,876.71
  5. Step 5: Solve for x
    x = 1,049,245,850,876.71/1,185,315.06
  6. Step 6: Final answer
    x = 885,204.18

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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.