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Finding the Fourth Proportional to 500,525.44, 690,725.40 and 274,174.72

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Solution

The fourth proportional to 500,525.44, 690,725.40 and 274,174.72 is: 378,361.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,525.44 : 690,725.40 = 274,174.72 : x
  2. Step 2: Convert to fraction form
    500,525.44/690,725.40 = 274,174.72/x
  3. Step 3: Cross multiply
    500,525.44x = 690,725.40 × 274,174.72
  4. Step 4: Simplify right side
    500,525.44x = 189,379,443,141.89
  5. Step 5: Solve for x
    x = 189,379,443,141.89/500,525.44
  6. Step 6: Final answer
    x = 378,361.27

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1.5x scale

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.