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Finding the Fourth Proportional to 436,900.56, 655,131.65 and 254,590.43

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Solution

The fourth proportional to 436,900.56, 655,131.65 and 254,590.43 is: 381,757.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,900.56 : 655,131.65 = 254,590.43 : x
  2. Step 2: Convert to fraction form
    436,900.56/655,131.65 = 254,590.43/x
  3. Step 3: Cross multiply
    436,900.56x = 655,131.65 × 254,590.43
  4. Step 4: Simplify right side
    436,900.56x = 166,790,243,931.50
  5. Step 5: Solve for x
    x = 166,790,243,931.50/436,900.56
  6. Step 6: Final answer
    x = 381,757.91

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1.5x scale

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.