Home / 717,993.12-1,077,189.27-313,220.73

Finding the Fourth Proportional to 717,993.12, 1,077,189.27 and 313,220.73

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Solution

The fourth proportional to 717,993.12, 1,077,189.27 and 313,220.73 is: 469,918.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,993.12 : 1,077,189.27 = 313,220.73 : x
  2. Step 2: Convert to fraction form
    717,993.12/1,077,189.27 = 313,220.73/x
  3. Step 3: Cross multiply
    717,993.12x = 1,077,189.27 × 313,220.73
  4. Step 4: Simplify right side
    717,993.12x = 337,398,009,497.57
  5. Step 5: Solve for x
    x = 337,398,009,497.57/717,993.12
  6. Step 6: Final answer
    x = 469,918.17

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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.