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Finding the Fourth Proportional to 415,048.20, 622,572.30 and 115,528.20

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Solution

The fourth proportional to 415,048.20, 622,572.30 and 115,528.20 is: 173,292.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,048.20 : 622,572.30 = 115,528.20 : x
  2. Step 2: Convert to fraction form
    415,048.20/622,572.30 = 115,528.20/x
  3. Step 3: Cross multiply
    415,048.20x = 622,572.30 × 115,528.20
  4. Step 4: Simplify right side
    415,048.20x = 71,924,657,188.86
  5. Step 5: Solve for x
    x = 71,924,657,188.86/415,048.20
  6. Step 6: Final answer
    x = 173,292.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.