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Finding the Fourth Proportional to 606,912.80, 910,887.60 and 270,471.20

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Solution

The fourth proportional to 606,912.80, 910,887.60 and 270,471.20 is: 405,937.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,912.80 : 910,887.60 = 270,471.20 : x
  2. Step 2: Convert to fraction form
    606,912.80/910,887.60 = 270,471.20/x
  3. Step 3: Cross multiply
    606,912.80x = 910,887.60 × 270,471.20
  4. Step 4: Simplify right side
    606,912.80x = 246,368,862,237.12
  5. Step 5: Solve for x
    x = 246,368,862,237.12/606,912.80
  6. Step 6: Final answer
    x = 405,937.83

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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.