Home / 725,538.72-1,086,498-458,493.60

Finding the Fourth Proportional to 725,538.72, 1,086,498 and 458,493.60

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Solution

The fourth proportional to 725,538.72, 1,086,498 and 458,493.60 is: 686,596.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,538.72 : 1,086,498 = 458,493.60 : x
  2. Step 2: Convert to fraction form
    725,538.72/1,086,498 = 458,493.60/x
  3. Step 3: Cross multiply
    725,538.72x = 1,086,498 × 458,493.60
  4. Step 4: Simplify right side
    725,538.72x = 498,152,379,412.80
  5. Step 5: Solve for x
    x = 498,152,379,412.80/725,538.72
  6. Step 6: Final answer
    x = 686,596.55

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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.