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Finding the Fourth Proportional to 461,057.09, 690,665.47 and 223,679.57

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Solution

The fourth proportional to 461,057.09, 690,665.47 and 223,679.57 is: 335,072.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,057.09 : 690,665.47 = 223,679.57 : x
  2. Step 2: Convert to fraction form
    461,057.09/690,665.47 = 223,679.57/x
  3. Step 3: Cross multiply
    461,057.09x = 690,665.47 × 223,679.57
  4. Step 4: Simplify right side
    461,057.09x = 154,487,755,343.45
  5. Step 5: Solve for x
    x = 154,487,755,343.45/461,057.09
  6. Step 6: Final answer
    x = 335,072.94

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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.