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Finding the Fourth Proportional to 637,729.39, 956,729.02 and 211,241.06

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Solution

The fourth proportional to 637,729.39, 956,729.02 and 211,241.06 is: 316,906.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,729.39 : 956,729.02 = 211,241.06 : x
  2. Step 2: Convert to fraction form
    637,729.39/956,729.02 = 211,241.06/x
  3. Step 3: Cross multiply
    637,729.39x = 956,729.02 × 211,241.06
  4. Step 4: Simplify right side
    637,729.39x = 202,100,452,317.56
  5. Step 5: Solve for x
    x = 202,100,452,317.56/637,729.39
  6. Step 6: Final answer
    x = 316,906.29

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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.