Home / 427,518.72-589,993.20-236,529

Finding the Fourth Proportional to 427,518.72, 589,993.20 and 236,529

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Solution

The fourth proportional to 427,518.72, 589,993.20 and 236,529 is: 326,419.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,518.72 : 589,993.20 = 236,529 : x
  2. Step 2: Convert to fraction form
    427,518.72/589,993.20 = 236,529/x
  3. Step 3: Cross multiply
    427,518.72x = 589,993.20 × 236,529
  4. Step 4: Simplify right side
    427,518.72x = 139,550,501,602.80
  5. Step 5: Solve for x
    x = 139,550,501,602.80/427,518.72
  6. Step 6: Final answer
    x = 326,419.63

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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.