Home / 725,628.40-1,088,615.40-304,687.60

Finding the Fourth Proportional to 725,628.40, 1,088,615.40 and 304,687.60

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Solution

The fourth proportional to 725,628.40, 1,088,615.40 and 304,687.60 is: 457,103.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,628.40 : 1,088,615.40 = 304,687.60 : x
  2. Step 2: Convert to fraction form
    725,628.40/1,088,615.40 = 304,687.60/x
  3. Step 3: Cross multiply
    725,628.40x = 1,088,615.40 × 304,687.60
  4. Step 4: Simplify right side
    725,628.40x = 331,687,613,549.04
  5. Step 5: Solve for x
    x = 331,687,613,549.04/725,628.40
  6. Step 6: Final answer
    x = 457,103.96

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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.