Home / 911,209.68-1,366,923.96-379,090.80

Finding the Fourth Proportional to 911,209.68, 1,366,923.96 and 379,090.80

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Solution

The fourth proportional to 911,209.68, 1,366,923.96 and 379,090.80 is: 568,681.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,209.68 : 1,366,923.96 = 379,090.80 : x
  2. Step 2: Convert to fraction form
    911,209.68/1,366,923.96 = 379,090.80/x
  3. Step 3: Cross multiply
    911,209.68x = 1,366,923.96 × 379,090.80
  4. Step 4: Simplify right side
    911,209.68x = 518,188,297,535.57
  5. Step 5: Solve for x
    x = 518,188,297,535.57/911,209.68
  6. Step 6: Final answer
    x = 568,681.73

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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.