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Finding the Fourth Proportional to 394,465.95, 590,222.70 and 261,605.70

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Solution

The fourth proportional to 394,465.95, 590,222.70 and 261,605.70 is: 391,429.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,465.95 : 590,222.70 = 261,605.70 : x
  2. Step 2: Convert to fraction form
    394,465.95/590,222.70 = 261,605.70/x
  3. Step 3: Cross multiply
    394,465.95x = 590,222.70 × 261,605.70
  4. Step 4: Simplify right side
    394,465.95x = 154,405,622,589.39
  5. Step 5: Solve for x
    x = 154,405,622,589.39/394,465.95
  6. Step 6: Final answer
    x = 391,429.53

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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.