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Finding the Fourth Proportional to 284,624.80, 426,958.84 and 84,929.60

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Solution

The fourth proportional to 284,624.80, 426,958.84 and 84,929.60 is: 127,400.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,624.80 : 426,958.84 = 84,929.60 : x
  2. Step 2: Convert to fraction form
    284,624.80/426,958.84 = 84,929.60/x
  3. Step 3: Cross multiply
    284,624.80x = 426,958.84 × 84,929.60
  4. Step 4: Simplify right side
    284,624.80x = 36,261,443,497.66
  5. Step 5: Solve for x
    x = 36,261,443,497.66/284,624.80
  6. Step 6: Final answer
    x = 127,400.86

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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.