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Finding the Fourth Proportional to 486,093.15, 729,139.73 and 415,234.35

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Solution

The fourth proportional to 486,093.15, 729,139.73 and 415,234.35 is: 622,851.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,093.15 : 729,139.73 = 415,234.35 : x
  2. Step 2: Convert to fraction form
    486,093.15/729,139.73 = 415,234.35/x
  3. Step 3: Cross multiply
    486,093.15x = 729,139.73 × 415,234.35
  4. Step 4: Simplify right side
    486,093.15x = 302,763,859,769.55
  5. Step 5: Solve for x
    x = 302,763,859,769.55/486,093.15
  6. Step 6: Final answer
    x = 622,851.53

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Similar ratio
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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.