Home / 716,125.24-988,233.09-393,835.33

Finding the Fourth Proportional to 716,125.24, 988,233.09 and 393,835.33

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Solution

The fourth proportional to 716,125.24, 988,233.09 and 393,835.33 is: 543,481.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,125.24 : 988,233.09 = 393,835.33 : x
  2. Step 2: Convert to fraction form
    716,125.24/988,233.09 = 393,835.33/x
  3. Step 3: Cross multiply
    716,125.24x = 988,233.09 × 393,835.33
  4. Step 4: Simplify right side
    716,125.24x = 389,201,100,175.90
  5. Step 5: Solve for x
    x = 389,201,100,175.90/716,125.24
  6. Step 6: Final answer
    x = 543,481.90

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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.