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Finding the Fourth Proportional to 545,991.46, 753,435.07 and 300,965.48

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Solution

The fourth proportional to 545,991.46, 753,435.07 and 300,965.48 is: 415,314.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,991.46 : 753,435.07 = 300,965.48 : x
  2. Step 2: Convert to fraction form
    545,991.46/753,435.07 = 300,965.48/x
  3. Step 3: Cross multiply
    545,991.46x = 753,435.07 × 300,965.48
  4. Step 4: Simplify right side
    545,991.46x = 226,757,947,491.38
  5. Step 5: Solve for x
    x = 226,757,947,491.38/545,991.46
  6. Step 6: Final answer
    x = 415,314.09

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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.