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Finding the Fourth Proportional to 545,912.80, 753,382.82 and 304,195.56

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Solution

The fourth proportional to 545,912.80, 753,382.82 and 304,195.56 is: 419,802.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,912.80 : 753,382.82 = 304,195.56 : x
  2. Step 2: Convert to fraction form
    545,912.80/753,382.82 = 304,195.56/x
  3. Step 3: Cross multiply
    545,912.80x = 753,382.82 × 304,195.56
  4. Step 4: Simplify right side
    545,912.80x = 229,175,708,824.28
  5. Step 5: Solve for x
    x = 229,175,708,824.28/545,912.80
  6. Step 6: Final answer
    x = 419,802.78

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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.