Home / 1,081,115.04-1,491,980.76-717,912.60

Finding the Fourth Proportional to 1,081,115.04, 1,491,980.76 and 717,912.60

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Solution

The fourth proportional to 1,081,115.04, 1,491,980.76 and 717,912.60 is: 990,747.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,115.04 : 1,491,980.76 = 717,912.60 : x
  2. Step 2: Convert to fraction form
    1,081,115.04/1,491,980.76 = 717,912.60/x
  3. Step 3: Cross multiply
    1,081,115.04x = 1,491,980.76 × 717,912.60
  4. Step 4: Simplify right side
    1,081,115.04x = 1,071,111,786,561.58
  5. Step 5: Solve for x
    x = 1,071,111,786,561.58/1,081,115.04
  6. Step 6: Final answer
    x = 990,747.28

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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.