Home / 428,916.87-591,976.22-237,991.77

Finding the Fourth Proportional to 428,916.87, 591,976.22 and 237,991.77

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Solution

The fourth proportional to 428,916.87, 591,976.22 and 237,991.77 is: 328,468.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,916.87 : 591,976.22 = 237,991.77 : x
  2. Step 2: Convert to fraction form
    428,916.87/591,976.22 = 237,991.77/x
  3. Step 3: Cross multiply
    428,916.87x = 591,976.22 × 237,991.77
  4. Step 4: Simplify right side
    428,916.87x = 140,885,467,205.75
  5. Step 5: Solve for x
    x = 140,885,467,205.75/428,916.87
  6. Step 6: Final answer
    x = 328,468.00

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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.