Home / 719,140.14-1,078,429.68-269,615.79

Finding the Fourth Proportional to 719,140.14, 1,078,429.68 and 269,615.79

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Solution

The fourth proportional to 719,140.14, 1,078,429.68 and 269,615.79 is: 404,318.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,140.14 : 1,078,429.68 = 269,615.79 : x
  2. Step 2: Convert to fraction form
    719,140.14/1,078,429.68 = 269,615.79/x
  3. Step 3: Cross multiply
    719,140.14x = 1,078,429.68 × 269,615.79
  4. Step 4: Simplify right side
    719,140.14x = 290,761,670,132.65
  5. Step 5: Solve for x
    x = 290,761,670,132.65/719,140.14
  6. Step 6: Final answer
    x = 404,318.51

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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.