Home / 717,991.12-1,077,186.26-313,218.73

Finding the Fourth Proportional to 717,991.12, 1,077,186.26 and 313,218.73

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Solution

The fourth proportional to 717,991.12, 1,077,186.26 and 313,218.73 is: 469,915.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,991.12 : 1,077,186.26 = 313,218.73 : x
  2. Step 2: Convert to fraction form
    717,991.12/1,077,186.26 = 313,218.73/x
  3. Step 3: Cross multiply
    717,991.12x = 1,077,186.26 × 313,218.73
  4. Step 4: Simplify right side
    717,991.12x = 337,394,912,330.65
  5. Step 5: Solve for x
    x = 337,394,912,330.65/717,991.12
  6. Step 6: Final answer
    x = 469,915.16

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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.