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Finding the Fourth Proportional to 415,273.40, 622,521.30 and 325,266.20

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Solution

The fourth proportional to 415,273.40, 622,521.30 and 325,266.20 is: 487,594.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,273.40 : 622,521.30 = 325,266.20 : x
  2. Step 2: Convert to fraction form
    415,273.40/622,521.30 = 325,266.20/x
  3. Step 3: Cross multiply
    415,273.40x = 622,521.30 × 325,266.20
  4. Step 4: Simplify right side
    415,273.40x = 202,485,137,670.06
  5. Step 5: Solve for x
    x = 202,485,137,670.06/415,273.40
  6. Step 6: Final answer
    x = 487,594.77

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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.