Home / 725,609.58-1,001,353.20-398,936.40

Finding the Fourth Proportional to 725,609.58, 1,001,353.20 and 398,936.40

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Solution

The fourth proportional to 725,609.58, 1,001,353.20 and 398,936.40 is: 550,538.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,609.58 : 1,001,353.20 = 398,936.40 : x
  2. Step 2: Convert to fraction form
    725,609.58/1,001,353.20 = 398,936.40/x
  3. Step 3: Cross multiply
    725,609.58x = 1,001,353.20 × 398,936.40
  4. Step 4: Simplify right side
    725,609.58x = 399,476,237,729.41
  5. Step 5: Solve for x
    x = 399,476,237,729.41/725,609.58
  6. Step 6: Final answer
    x = 550,538.82

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Double scale
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1.5x scale

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.