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Finding the Fourth Proportional to 407,542.09, 610,517.90 and 266,874.25

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Solution

The fourth proportional to 407,542.09, 610,517.90 and 266,874.25 is: 399,790.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,542.09 : 610,517.90 = 266,874.25 : x
  2. Step 2: Convert to fraction form
    407,542.09/610,517.90 = 266,874.25/x
  3. Step 3: Cross multiply
    407,542.09x = 610,517.90 × 266,874.25
  4. Step 4: Simplify right side
    407,542.09x = 162,931,505,339.70
  5. Step 5: Solve for x
    x = 162,931,505,339.70/407,542.09
  6. Step 6: Final answer
    x = 399,790.62

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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.