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Finding the Fourth Proportional to 424,544.88, 636,814.44 and 129,056.88

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Solution

The fourth proportional to 424,544.88, 636,814.44 and 129,056.88 is: 193,584.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,544.88 : 636,814.44 = 129,056.88 : x
  2. Step 2: Convert to fraction form
    424,544.88/636,814.44 = 129,056.88/x
  3. Step 3: Cross multiply
    424,544.88x = 636,814.44 × 129,056.88
  4. Step 4: Simplify right side
    424,544.88x = 82,185,284,765.35
  5. Step 5: Solve for x
    x = 82,185,284,765.35/424,544.88
  6. Step 6: Final answer
    x = 193,584.44

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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.