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Finding the Fourth Proportional to 548,369.32, 756,744.44 and 306,649.12

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Solution

The fourth proportional to 548,369.32, 756,744.44 and 306,649.12 is: 423,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,369.32 : 756,744.44 = 306,649.12 : x
  2. Step 2: Convert to fraction form
    548,369.32/756,744.44 = 306,649.12/x
  3. Step 3: Cross multiply
    548,369.32x = 756,744.44 × 306,649.12
  4. Step 4: Simplify right side
    548,369.32x = 232,055,016,590.89
  5. Step 5: Solve for x
    x = 232,055,016,590.89/548,369.32
  6. Step 6: Final answer
    x = 423,172.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.