Home / 791,771.82-1,187,646.61-312,003.79

Finding the Fourth Proportional to 791,771.82, 1,187,646.61 and 312,003.79

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Solution

The fourth proportional to 791,771.82, 1,187,646.61 and 312,003.79 is: 468,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,771.82 : 1,187,646.61 = 312,003.79 : x
  2. Step 2: Convert to fraction form
    791,771.82/1,187,646.61 = 312,003.79/x
  3. Step 3: Cross multiply
    791,771.82x = 1,187,646.61 × 312,003.79
  4. Step 4: Simplify right side
    791,771.82x = 370,550,243,500.65
  5. Step 5: Solve for x
    x = 370,550,243,500.65/791,771.82
  6. Step 6: Final answer
    x = 468,001.30

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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.