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Finding the Fourth Proportional to 485,709.99, 670,464.42 and 365,201.22

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Solution

The fourth proportional to 485,709.99, 670,464.42 and 365,201.22 is: 504,116.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,709.99 : 670,464.42 = 365,201.22 : x
  2. Step 2: Convert to fraction form
    485,709.99/670,464.42 = 365,201.22/x
  3. Step 3: Cross multiply
    485,709.99x = 670,464.42 × 365,201.22
  4. Step 4: Simplify right side
    485,709.99x = 244,854,424,150.59
  5. Step 5: Solve for x
    x = 244,854,424,150.59/485,709.99
  6. Step 6: Final answer
    x = 504,116.51

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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.