Home / 420,669.91-580,456.00-248,563.94

Finding the Fourth Proportional to 420,669.91, 580,456.00 and 248,563.94

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Solution

The fourth proportional to 420,669.91, 580,456.00 and 248,563.94 is: 342,977.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,669.91 : 580,456.00 = 248,563.94 : x
  2. Step 2: Convert to fraction form
    420,669.91/580,456.00 = 248,563.94/x
  3. Step 3: Cross multiply
    420,669.91x = 580,456.00 × 248,563.94
  4. Step 4: Simplify right side
    420,669.91x = 144,280,430,331.04
  5. Step 5: Solve for x
    x = 144,280,430,331.04/420,669.91
  6. Step 6: Final answer
    x = 342,977.78

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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.