Home / 460,930.24-691,395.36-145,419.04

Finding the Fourth Proportional to 460,930.24, 691,395.36 and 145,419.04

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Solution

The fourth proportional to 460,930.24, 691,395.36 and 145,419.04 is: 218,128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,930.24 : 691,395.36 = 145,419.04 : x
  2. Step 2: Convert to fraction form
    460,930.24/691,395.36 = 145,419.04/x
  3. Step 3: Cross multiply
    460,930.24x = 691,395.36 × 145,419.04
  4. Step 4: Simplify right side
    460,930.24x = 100,542,049,511.65
  5. Step 5: Solve for x
    x = 100,542,049,511.65/460,930.24
  6. Step 6: Final answer
    x = 218,128.56

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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.