Home / 725,131.69-1,087,323.90-325,429.81

Finding the Fourth Proportional to 725,131.69, 1,087,323.90 and 325,429.81

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Solution

The fourth proportional to 725,131.69, 1,087,323.90 and 325,429.81 is: 487,977.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,131.69 : 1,087,323.90 = 325,429.81 : x
  2. Step 2: Convert to fraction form
    725,131.69/1,087,323.90 = 325,429.81/x
  3. Step 3: Cross multiply
    725,131.69x = 1,087,323.90 × 325,429.81
  4. Step 4: Simplify right side
    725,131.69x = 353,847,610,185.46
  5. Step 5: Solve for x
    x = 353,847,610,185.46/725,131.69
  6. Step 6: Final answer
    x = 487,977.03

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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.