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Finding the Fourth Proportional to 767,908.80, 1,150,480.80 and 657,316.80

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Solution

The fourth proportional to 767,908.80, 1,150,480.80 and 657,316.80 is: 984,791.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,908.80 : 1,150,480.80 = 657,316.80 : x
  2. Step 2: Convert to fraction form
    767,908.80/1,150,480.80 = 657,316.80/x
  3. Step 3: Cross multiply
    767,908.80x = 1,150,480.80 × 657,316.80
  4. Step 4: Simplify right side
    767,908.80x = 756,230,357,917.44
  5. Step 5: Solve for x
    x = 756,230,357,917.44/767,908.80
  6. Step 6: Final answer
    x = 984,791.89

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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.