Home / 671,811.32-1,008,039.63-419,026.92

Finding the Fourth Proportional to 671,811.32, 1,008,039.63 and 419,026.92

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Solution

The fourth proportional to 671,811.32, 1,008,039.63 and 419,026.92 is: 628,741.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,811.32 : 1,008,039.63 = 419,026.92 : x
  2. Step 2: Convert to fraction form
    671,811.32/1,008,039.63 = 419,026.92/x
  3. Step 3: Cross multiply
    671,811.32x = 1,008,039.63 × 419,026.92
  4. Step 4: Simplify right side
    671,811.32x = 422,395,744,858.27
  5. Step 5: Solve for x
    x = 422,395,744,858.27/671,811.32
  6. Step 6: Final answer
    x = 628,741.63

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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.