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Finding the Fourth Proportional to 404,706.66, 558,991.92 and 303,186.12

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Solution

The fourth proportional to 404,706.66, 558,991.92 and 303,186.12 is: 418,768.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,706.66 : 558,991.92 = 303,186.12 : x
  2. Step 2: Convert to fraction form
    404,706.66/558,991.92 = 303,186.12/x
  3. Step 3: Cross multiply
    404,706.66x = 558,991.92 × 303,186.12
  4. Step 4: Simplify right side
    404,706.66x = 169,478,591,336.15
  5. Step 5: Solve for x
    x = 169,478,591,336.15/404,706.66
  6. Step 6: Final answer
    x = 418,768.97

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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.