Home / 561,217.04-774,469.80-306,561.68

Finding the Fourth Proportional to 561,217.04, 774,469.80 and 306,561.68

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Solution

The fourth proportional to 561,217.04, 774,469.80 and 306,561.68 is: 423,049.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,217.04 : 774,469.80 = 306,561.68 : x
  2. Step 2: Convert to fraction form
    561,217.04/774,469.80 = 306,561.68/x
  3. Step 3: Cross multiply
    561,217.04x = 774,469.80 × 306,561.68
  4. Step 4: Simplify right side
    561,217.04x = 237,422,762,997.26
  5. Step 5: Solve for x
    x = 237,422,762,997.26/561,217.04
  6. Step 6: Final answer
    x = 423,049.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.