Home / 456,984.72-685,617.21-204,477.75

Finding the Fourth Proportional to 456,984.72, 685,617.21 and 204,477.75

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Solution

The fourth proportional to 456,984.72, 685,617.21 and 204,477.75 is: 306,779.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,984.72 : 685,617.21 = 204,477.75 : x
  2. Step 2: Convert to fraction form
    456,984.72/685,617.21 = 204,477.75/x
  3. Step 3: Cross multiply
    456,984.72x = 685,617.21 × 204,477.75
  4. Step 4: Simplify right side
    456,984.72x = 140,193,464,462.08
  5. Step 5: Solve for x
    x = 140,193,464,462.08/456,984.72
  6. Step 6: Final answer
    x = 306,779.33

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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.