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Finding the Fourth Proportional to 545,171.69, 752,336.88 and 303,449.06

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Solution

The fourth proportional to 545,171.69, 752,336.88 and 303,449.06 is: 418,759.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,171.69 : 752,336.88 = 303,449.06 : x
  2. Step 2: Convert to fraction form
    545,171.69/752,336.88 = 303,449.06/x
  3. Step 3: Cross multiply
    545,171.69x = 752,336.88 × 303,449.06
  4. Step 4: Simplify right side
    545,171.69x = 228,295,919,039.33
  5. Step 5: Solve for x
    x = 228,295,919,039.33/545,171.69
  6. Step 6: Final answer
    x = 418,759.67

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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.