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Finding the Fourth Proportional to 548,150.76, 756,458.60 and 306,450.81

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Solution

The fourth proportional to 548,150.76, 756,458.60 and 306,450.81 is: 422,908.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,150.76 : 756,458.60 = 306,450.81 : x
  2. Step 2: Convert to fraction form
    548,150.76/756,458.60 = 306,450.81/x
  3. Step 3: Cross multiply
    548,150.76x = 756,458.60 × 306,450.81
  4. Step 4: Simplify right side
    548,150.76x = 231,817,349,169.21
  5. Step 5: Solve for x
    x = 231,817,349,169.21/548,150.76
  6. Step 6: Final answer
    x = 422,908.01

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Double scale
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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.