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Finding the Fourth Proportional to 545,511.28, 752,751.67 and 303,816.34

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Solution

The fourth proportional to 545,511.28, 752,751.67 and 303,816.34 is: 419,236.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,511.28 : 752,751.67 = 303,816.34 : x
  2. Step 2: Convert to fraction form
    545,511.28/752,751.67 = 303,816.34/x
  3. Step 3: Cross multiply
    545,511.28x = 752,751.67 × 303,816.34
  4. Step 4: Simplify right side
    545,511.28x = 228,698,257,308.29
  5. Step 5: Solve for x
    x = 228,698,257,308.29/545,511.28
  6. Step 6: Final answer
    x = 419,236.53

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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.