Home / 725,174.05-1,000,418.21-483,220.57

Finding the Fourth Proportional to 725,174.05, 1,000,418.21 and 483,220.57

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Solution

The fourth proportional to 725,174.05, 1,000,418.21 and 483,220.57 is: 666,629.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,174.05 : 1,000,418.21 = 483,220.57 : x
  2. Step 2: Convert to fraction form
    725,174.05/1,000,418.21 = 483,220.57/x
  3. Step 3: Cross multiply
    725,174.05x = 1,000,418.21 × 483,220.57
  4. Step 4: Simplify right side
    725,174.05x = 483,422,653,880.54
  5. Step 5: Solve for x
    x = 483,422,653,880.54/725,174.05
  6. Step 6: Final answer
    x = 666,629.83

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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.