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Finding the Fourth Proportional to 479,331.46, 661,479.78 and 264,471.67

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Solution

The fourth proportional to 479,331.46, 661,479.78 and 264,471.67 is: 364,972.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,331.46 : 661,479.78 = 264,471.67 : x
  2. Step 2: Convert to fraction form
    479,331.46/661,479.78 = 264,471.67/x
  3. Step 3: Cross multiply
    479,331.46x = 661,479.78 × 264,471.67
  4. Step 4: Simplify right side
    479,331.46x = 174,942,662,087.83
  5. Step 5: Solve for x
    x = 174,942,662,087.83/479,331.46
  6. Step 6: Final answer
    x = 364,972.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.