Home / 720,970.93-1,081,517.75-188,491.11

Finding the Fourth Proportional to 720,970.93, 1,081,517.75 and 188,491.11

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Solution

The fourth proportional to 720,970.93, 1,081,517.75 and 188,491.11 is: 282,752.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,970.93 : 1,081,517.75 = 188,491.11 : x
  2. Step 2: Convert to fraction form
    720,970.93/1,081,517.75 = 188,491.11/x
  3. Step 3: Cross multiply
    720,970.93x = 1,081,517.75 × 188,491.11
  4. Step 4: Simplify right side
    720,970.93x = 203,856,481,182.20
  5. Step 5: Solve for x
    x = 203,856,481,182.20/720,970.93
  6. Step 6: Final answer
    x = 282,752.71

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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.