Home / 725,249.81-1,086,379.85-424,819.58

Finding the Fourth Proportional to 725,249.81, 1,086,379.85 and 424,819.58

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Solution

The fourth proportional to 725,249.81, 1,086,379.85 and 424,819.58 is: 636,353.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,249.81 : 1,086,379.85 = 424,819.58 : x
  2. Step 2: Convert to fraction form
    725,249.81/1,086,379.85 = 424,819.58/x
  3. Step 3: Cross multiply
    725,249.81x = 1,086,379.85 × 424,819.58
  4. Step 4: Simplify right side
    725,249.81x = 461,515,424,041.47
  5. Step 5: Solve for x
    x = 461,515,424,041.47/725,249.81
  6. Step 6: Final answer
    x = 636,353.74

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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.