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Finding the Fourth Proportional to 548,570.34, 756,722.24 and 319,101.81

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Solution

The fourth proportional to 548,570.34, 756,722.24 and 319,101.81 is: 440,183.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,570.34 : 756,722.24 = 319,101.81 : x
  2. Step 2: Convert to fraction form
    548,570.34/756,722.24 = 319,101.81/x
  3. Step 3: Cross multiply
    548,570.34x = 756,722.24 × 319,101.81
  4. Step 4: Simplify right side
    548,570.34x = 241,471,434,855.75
  5. Step 5: Solve for x
    x = 241,471,434,855.75/548,570.34
  6. Step 6: Final answer
    x = 440,183.18

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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.