Home / 463,917.06-639,764.73-302,720.58

Finding the Fourth Proportional to 463,917.06, 639,764.73 and 302,720.58

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Solution

The fourth proportional to 463,917.06, 639,764.73 and 302,720.58 is: 417,466.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,917.06 : 639,764.73 = 302,720.58 : x
  2. Step 2: Convert to fraction form
    463,917.06/639,764.73 = 302,720.58/x
  3. Step 3: Cross multiply
    463,917.06x = 639,764.73 × 302,720.58
  4. Step 4: Simplify right side
    463,917.06x = 193,669,950,129.14
  5. Step 5: Solve for x
    x = 193,669,950,129.14/463,917.06
  6. Step 6: Final answer
    x = 417,466.76

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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.