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Finding the Fourth Proportional to 805,449.66, 1,208,169.06 and 273,345.30

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Solution

The fourth proportional to 805,449.66, 1,208,169.06 and 273,345.30 is: 410,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,449.66 : 1,208,169.06 = 273,345.30 : x
  2. Step 2: Convert to fraction form
    805,449.66/1,208,169.06 = 273,345.30/x
  3. Step 3: Cross multiply
    805,449.66x = 1,208,169.06 × 273,345.30
  4. Step 4: Simplify right side
    805,449.66x = 330,247,334,156.42
  5. Step 5: Solve for x
    x = 330,247,334,156.42/805,449.66
  6. Step 6: Final answer
    x = 410,016.11

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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.