Home / 981,179.37-1,471,769.07-307,313.40

Finding the Fourth Proportional to 981,179.37, 1,471,769.07 and 307,313.40

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Solution

The fourth proportional to 981,179.37, 1,471,769.07 and 307,313.40 is: 460,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,179.37 : 1,471,769.07 = 307,313.40 : x
  2. Step 2: Convert to fraction form
    981,179.37/1,471,769.07 = 307,313.40/x
  3. Step 3: Cross multiply
    981,179.37x = 1,471,769.07 × 307,313.40
  4. Step 4: Simplify right side
    981,179.37x = 452,294,356,916.54
  5. Step 5: Solve for x
    x = 452,294,356,916.54/981,179.37
  6. Step 6: Final answer
    x = 460,970.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.