Home / 548,945.56-757,544.76-307,228.12

Finding the Fourth Proportional to 548,945.56, 757,544.76 and 307,228.12

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Solution

The fourth proportional to 548,945.56, 757,544.76 and 307,228.12 is: 423,974.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,945.56 : 757,544.76 = 307,228.12 : x
  2. Step 2: Convert to fraction form
    548,945.56/757,544.76 = 307,228.12/x
  3. Step 3: Cross multiply
    548,945.56x = 757,544.76 × 307,228.12
  4. Step 4: Simplify right side
    548,945.56x = 232,739,053,198.72
  5. Step 5: Solve for x
    x = 232,739,053,198.72/548,945.56
  6. Step 6: Final answer
    x = 423,974.74

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Double scale
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Similar ratio
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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.