Home / 415,767.30-623,942.55-266,370.90

Finding the Fourth Proportional to 415,767.30, 623,942.55 and 266,370.90

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Solution

The fourth proportional to 415,767.30, 623,942.55 and 266,370.90 is: 399,743.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,767.30 : 623,942.55 = 266,370.90 : x
  2. Step 2: Convert to fraction form
    415,767.30/623,942.55 = 266,370.90/x
  3. Step 3: Cross multiply
    415,767.30x = 623,942.55 × 266,370.90
  4. Step 4: Simplify right side
    415,767.30x = 166,200,138,591.80
  5. Step 5: Solve for x
    x = 166,200,138,591.80/415,767.30
  6. Step 6: Final answer
    x = 399,743.17

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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.