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Finding the Fourth Proportional to 545,912.66, 753,364.40 and 300,883.92

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Solution

The fourth proportional to 545,912.66, 753,364.40 and 300,883.92 is: 415,222.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,912.66 : 753,364.40 = 300,883.92 : x
  2. Step 2: Convert to fraction form
    545,912.66/753,364.40 = 300,883.92/x
  3. Step 3: Cross multiply
    545,912.66x = 753,364.40 × 300,883.92
  4. Step 4: Simplify right side
    545,912.66x = 226,675,229,530.91
  5. Step 5: Solve for x
    x = 226,675,229,530.91/545,912.66
  6. Step 6: Final answer
    x = 415,222.52

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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.