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Finding the Fourth Proportional to 500,584.56, 690,809.12 and 274,230.08

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Solution

The fourth proportional to 500,584.56, 690,809.12 and 274,230.08 is: 378,438.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,584.56 : 690,809.12 = 274,230.08 : x
  2. Step 2: Convert to fraction form
    500,584.56/690,809.12 = 274,230.08/x
  3. Step 3: Cross multiply
    500,584.56x = 690,809.12 × 274,230.08
  4. Step 4: Simplify right side
    500,584.56x = 189,440,640,242.33
  5. Step 5: Solve for x
    x = 189,440,640,242.33/500,584.56
  6. Step 6: Final answer
    x = 378,438.84

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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.