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Finding the Fourth Proportional to 415,276.40, 622,525.80 and 325,269.20

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Solution

The fourth proportional to 415,276.40, 622,525.80 and 325,269.20 is: 487,599.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,276.40 : 622,525.80 = 325,269.20 : x
  2. Step 2: Convert to fraction form
    415,276.40/622,525.80 = 325,269.20/x
  3. Step 3: Cross multiply
    415,276.40x = 622,525.80 × 325,269.20
  4. Step 4: Simplify right side
    415,276.40x = 202,488,468,945.36
  5. Step 5: Solve for x
    x = 202,488,468,945.36/415,276.40
  6. Step 6: Final answer
    x = 487,599.27

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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.