Home / 481,917.12-665,062.80-290,893.20

Finding the Fourth Proportional to 481,917.12, 665,062.80 and 290,893.20

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Solution

The fourth proportional to 481,917.12, 665,062.80 and 290,893.20 is: 401,442.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,917.12 : 665,062.80 = 290,893.20 : x
  2. Step 2: Convert to fraction form
    481,917.12/665,062.80 = 290,893.20/x
  3. Step 3: Cross multiply
    481,917.12x = 665,062.80 × 290,893.20
  4. Step 4: Simplify right side
    481,917.12x = 193,462,246,092.96
  5. Step 5: Solve for x
    x = 193,462,246,092.96/481,917.12
  6. Step 6: Final answer
    x = 401,442.98

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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.